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Finding the Fourth Proportional to 10,468.30, 15,774.48 and 8,660.12

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Solution

The fourth proportional to 10,468.30, 15,774.48 and 8,660.12 is: 13,049.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,468.30 : 15,774.48 = 8,660.12 : x
  2. Step 2: Convert to fraction form
    10,468.30/15,774.48 = 8,660.12/x
  3. Step 3: Cross multiply
    10,468.30x = 15,774.48 × 8,660.12
  4. Step 4: Simplify right side
    10,468.30x = 136,608,889.74
  5. Step 5: Solve for x
    x = 136,608,889.74/10,468.30
  6. Step 6: Final answer
    x = 13,049.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.