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Finding the Fourth Proportional to 58,082.81, 87,113.79 and 15,388.52

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Solution

The fourth proportional to 58,082.81, 87,113.79 and 15,388.52 is: 23,080.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,082.81 : 87,113.79 = 15,388.52 : x
  2. Step 2: Convert to fraction form
    58,082.81/87,113.79 = 15,388.52/x
  3. Step 3: Cross multiply
    58,082.81x = 87,113.79 × 15,388.52
  4. Step 4: Simplify right side
    58,082.81x = 1,340,552,517.48
  5. Step 5: Solve for x
    x = 1,340,552,517.48/58,082.81
  6. Step 6: Final answer
    x = 23,080.02

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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.