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Finding the Fourth Proportional to 10,471.92, 15,710.20 and 5,798.76

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Solution

The fourth proportional to 10,471.92, 15,710.20 and 5,798.76 is: 8,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471.92 : 15,710.20 = 5,798.76 : x
  2. Step 2: Convert to fraction form
    10,471.92/15,710.20 = 5,798.76/x
  3. Step 3: Cross multiply
    10,471.92x = 15,710.20 × 5,798.76
  4. Step 4: Simplify right side
    10,471.92x = 91,099,679.35
  5. Step 5: Solve for x
    x = 91,099,679.35/10,471.92
  6. Step 6: Final answer
    x = 8,699.42

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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.