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Finding the Fourth Proportional to 29,385.50, 40,551.10 and 15,956.51

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Solution

The fourth proportional to 29,385.50, 40,551.10 and 15,956.51 is: 22,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,385.50 : 40,551.10 = 15,956.51 : x
  2. Step 2: Convert to fraction form
    29,385.50/40,551.10 = 15,956.51/x
  3. Step 3: Cross multiply
    29,385.50x = 40,551.10 × 15,956.51
  4. Step 4: Simplify right side
    29,385.50x = 647,053,790.01
  5. Step 5: Solve for x
    x = 647,053,790.01/29,385.50
  6. Step 6: Final answer
    x = 22,019.50

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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.