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Finding the Fourth Proportional to 56,839,999.60, 85,259,999.40 and 20,952,204.40

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Solution

The fourth proportional to 56,839,999.60, 85,259,999.40 and 20,952,204.40 is: 31,428,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,839,999.60 : 85,259,999.40 = 20,952,204.40 : x
  2. Step 2: Convert to fraction form
    56,839,999.60/85,259,999.40 = 20,952,204.40/x
  3. Step 3: Cross multiply
    56,839,999.60x = 85,259,999.40 × 20,952,204.40
  4. Step 4: Simplify right side
    56,839,999.60x = 1,786,384,934,572,677.25
  5. Step 5: Solve for x
    x = 1,786,384,934,572,677.25/56,839,999.60
  6. Step 6: Final answer
    x = 31,428,306.60

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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.