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Finding the Fourth Proportional to 61,303.34, 84,608.64 and 51,078.15

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Solution

The fourth proportional to 61,303.34, 84,608.64 and 51,078.15 is: 70,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,303.34 : 84,608.64 = 51,078.15 : x
  2. Step 2: Convert to fraction form
    61,303.34/84,608.64 = 51,078.15/x
  3. Step 3: Cross multiply
    61,303.34x = 84,608.64 × 51,078.15
  4. Step 4: Simplify right side
    61,303.34x = 4,321,652,805.22
  5. Step 5: Solve for x
    x = 4,321,652,805.22/61,303.34
  6. Step 6: Final answer
    x = 70,496.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.