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Finding the Fourth Proportional to 15,172,955.20, 22,759,432.80 and 15,172,955.20

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Solution

The fourth proportional to 15,172,955.20, 22,759,432.80 and 15,172,955.20 is: 22,759,432.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172,955.20 : 22,759,432.80 = 15,172,955.20 : x
  2. Step 2: Convert to fraction form
    15,172,955.20/22,759,432.80 = 15,172,955.20/x
  3. Step 3: Cross multiply
    15,172,955.20x = 22,759,432.80 × 15,172,955.20
  4. Step 4: Simplify right side
    15,172,955.20x = 345,327,854,251,810.56
  5. Step 5: Solve for x
    x = 345,327,854,251,810.56/15,172,955.20
  6. Step 6: Final answer
    x = 22,759,432.80

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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.