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Finding the Fourth Proportional to 58,618.80, 87,934.32 and 17,065.80

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Solution

The fourth proportional to 58,618.80, 87,934.32 and 17,065.80 is: 25,600.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,618.80 : 87,934.32 = 17,065.80 : x
  2. Step 2: Convert to fraction form
    58,618.80/87,934.32 = 17,065.80/x
  3. Step 3: Cross multiply
    58,618.80x = 87,934.32 × 17,065.80
  4. Step 4: Simplify right side
    58,618.80x = 1,500,669,518.26
  5. Step 5: Solve for x
    x = 1,500,669,518.26/58,618.80
  6. Step 6: Final answer
    x = 25,600.48

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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.