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Finding the Fourth Proportional to 58,098.32, 87,138.32 and 15,981.56

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Solution

The fourth proportional to 58,098.32, 87,138.32 and 15,981.56 is: 23,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,098.32 : 87,138.32 = 15,981.56 : x
  2. Step 2: Convert to fraction form
    58,098.32/87,138.32 = 15,981.56/x
  3. Step 3: Cross multiply
    58,098.32x = 87,138.32 × 15,981.56
  4. Step 4: Simplify right side
    58,098.32x = 1,392,606,289.38
  5. Step 5: Solve for x
    x = 1,392,606,289.38/58,098.32
  6. Step 6: Final answer
    x = 23,969.82

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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.