Home / 6,688,003.10-10,032,004.65-6,650,678.30

Finding the Fourth Proportional to 6,688,003.10, 10,032,004.65 and 6,650,678.30

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Solution

The fourth proportional to 6,688,003.10, 10,032,004.65 and 6,650,678.30 is: 9,976,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688,003.10 : 10,032,004.65 = 6,650,678.30 : x
  2. Step 2: Convert to fraction form
    6,688,003.10/10,032,004.65 = 6,650,678.30/x
  3. Step 3: Cross multiply
    6,688,003.10x = 10,032,004.65 × 6,650,678.30
  4. Step 4: Simplify right side
    6,688,003.10x = 66,719,635,631,254.09
  5. Step 5: Solve for x
    x = 66,719,635,631,254.09/6,688,003.10
  6. Step 6: Final answer
    x = 9,976,017.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.