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Finding the Fourth Proportional to 29,332, 40,480.32 and 18,156.16

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Solution

The fourth proportional to 29,332, 40,480.32 and 18,156.16 is: 25,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,332 : 40,480.32 = 18,156.16 : x
  2. Step 2: Convert to fraction form
    29,332/40,480.32 = 18,156.16/x
  3. Step 3: Cross multiply
    29,332x = 40,480.32 × 18,156.16
  4. Step 4: Simplify right side
    29,332x = 734,967,166.77
  5. Step 5: Solve for x
    x = 734,967,166.77/29,332
  6. Step 6: Final answer
    x = 25,056.84

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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.