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Finding the Fourth Proportional to 14,460.62, 21,691.12 and 3,931.16

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Solution

The fourth proportional to 14,460.62, 21,691.12 and 3,931.16 is: 5,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,460.62 : 21,691.12 = 3,931.16 : x
  2. Step 2: Convert to fraction form
    14,460.62/21,691.12 = 3,931.16/x
  3. Step 3: Cross multiply
    14,460.62x = 21,691.12 × 3,931.16
  4. Step 4: Simplify right side
    14,460.62x = 85,271,263.30
  5. Step 5: Solve for x
    x = 85,271,263.30/14,460.62
  6. Step 6: Final answer
    x = 5,896.79

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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.