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Finding the Fourth Proportional to 29,332.84, 40,479.62 and 15,904.12

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Solution

The fourth proportional to 29,332.84, 40,479.62 and 15,904.12 is: 21,947.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,332.84 : 40,479.62 = 15,904.12 : x
  2. Step 2: Convert to fraction form
    29,332.84/40,479.62 = 15,904.12/x
  3. Step 3: Cross multiply
    29,332.84x = 40,479.62 × 15,904.12
  4. Step 4: Simplify right side
    29,332.84x = 643,792,734.03
  5. Step 5: Solve for x
    x = 643,792,734.03/29,332.84
  6. Step 6: Final answer
    x = 21,947.85

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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.