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Finding the Fourth Proportional to 58,098.96, 87,140.16 and 18,659.52

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Solution

The fourth proportional to 58,098.96, 87,140.16 and 18,659.52 is: 27,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,098.96 : 87,140.16 = 18,659.52 : x
  2. Step 2: Convert to fraction form
    58,098.96/87,140.16 = 18,659.52/x
  3. Step 3: Cross multiply
    58,098.96x = 87,140.16 × 18,659.52
  4. Step 4: Simplify right side
    58,098.96x = 1,625,993,558.32
  5. Step 5: Solve for x
    x = 1,625,993,558.32/58,098.96
  6. Step 6: Final answer
    x = 27,986.62

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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.