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Finding the Fourth Proportional to 7,065,985.80, 10,598,978.70 and 2,016,640.20

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Solution

The fourth proportional to 7,065,985.80, 10,598,978.70 and 2,016,640.20 is: 3,024,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065,985.80 : 10,598,978.70 = 2,016,640.20 : x
  2. Step 2: Convert to fraction form
    7,065,985.80/10,598,978.70 = 2,016,640.20/x
  3. Step 3: Cross multiply
    7,065,985.80x = 10,598,978.70 × 2,016,640.20
  4. Step 4: Simplify right side
    7,065,985.80x = 21,374,326,525,363.74
  5. Step 5: Solve for x
    x = 21,374,326,525,363.74/7,065,985.80
  6. Step 6: Final answer
    x = 3,024,960.30

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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.