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Finding the Fourth Proportional to 58,317.40, 87,489.99 and 18,874.52

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Solution

The fourth proportional to 58,317.40, 87,489.99 and 18,874.52 is: 28,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,317.40 : 87,489.99 = 18,874.52 : x
  2. Step 2: Convert to fraction form
    58,317.40/87,489.99 = 18,874.52/x
  3. Step 3: Cross multiply
    58,317.40x = 87,489.99 × 18,874.52
  4. Step 4: Simplify right side
    58,317.40x = 1,651,331,057.83
  5. Step 5: Solve for x
    x = 1,651,331,057.83/58,317.40
  6. Step 6: Final answer
    x = 28,316.27

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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.