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Finding the Fourth Proportional to 11,471.24, 15,815.51 and 7,695.02

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Solution

The fourth proportional to 11,471.24, 15,815.51 and 7,695.02 is: 10,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.24 : 15,815.51 = 7,695.02 : x
  2. Step 2: Convert to fraction form
    11,471.24/15,815.51 = 7,695.02/x
  3. Step 3: Cross multiply
    11,471.24x = 15,815.51 × 7,695.02
  4. Step 4: Simplify right side
    11,471.24x = 121,700,665.76
  5. Step 5: Solve for x
    x = 121,700,665.76/11,471.24
  6. Step 6: Final answer
    x = 10,609.20

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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.