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Finding the Fourth Proportional to 29,363.16, 40,520.95 and 15,934.08

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Solution

The fourth proportional to 29,363.16, 40,520.95 and 15,934.08 is: 21,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,363.16 : 40,520.95 = 15,934.08 : x
  2. Step 2: Convert to fraction form
    29,363.16/40,520.95 = 15,934.08/x
  3. Step 3: Cross multiply
    29,363.16x = 40,520.95 × 15,934.08
  4. Step 4: Simplify right side
    29,363.16x = 645,664,058.98
  5. Step 5: Solve for x
    x = 645,664,058.98/29,363.16
  6. Step 6: Final answer
    x = 21,988.92

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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.