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Finding the Fourth Proportional to 58,099.87, 87,148.59 and 15,979.77

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Solution

The fourth proportional to 58,099.87, 87,148.59 and 15,979.77 is: 23,969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,099.87 : 87,148.59 = 15,979.77 : x
  2. Step 2: Convert to fraction form
    58,099.87/87,148.59 = 15,979.77/x
  3. Step 3: Cross multiply
    58,099.87x = 87,148.59 × 15,979.77
  4. Step 4: Simplify right side
    58,099.87x = 1,392,614,424.02
  5. Step 5: Solve for x
    x = 1,392,614,424.02/58,099.87
  6. Step 6: Final answer
    x = 23,969.32

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Similar ratio
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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.