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Finding the Fourth Proportional to 10,616.72, 15,925.48 and 3,954.90

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Solution

The fourth proportional to 10,616.72, 15,925.48 and 3,954.90 is: 5,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616.72 : 15,925.48 = 3,954.90 : x
  2. Step 2: Convert to fraction form
    10,616.72/15,925.48 = 3,954.90/x
  3. Step 3: Cross multiply
    10,616.72x = 15,925.48 × 3,954.90
  4. Step 4: Simplify right side
    10,616.72x = 62,983,581.45
  5. Step 5: Solve for x
    x = 62,983,581.45/10,616.72
  6. Step 6: Final answer
    x = 5,932.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.