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Finding the Fourth Proportional to 29,400.88, 40,573.98 and 15,972.90

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Solution

The fourth proportional to 29,400.88, 40,573.98 and 15,972.90 is: 22,043.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,400.88 : 40,573.98 = 15,972.90 : x
  2. Step 2: Convert to fraction form
    29,400.88/40,573.98 = 15,972.90/x
  3. Step 3: Cross multiply
    29,400.88x = 40,573.98 × 15,972.90
  4. Step 4: Simplify right side
    29,400.88x = 648,084,125.14
  5. Step 5: Solve for x
    x = 648,084,125.14/29,400.88
  6. Step 6: Final answer
    x = 22,043.02

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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.