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Finding the Fourth Proportional to 48,387.84, 72,569.58 and 17,215.80

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Solution

The fourth proportional to 48,387.84, 72,569.58 and 17,215.80 is: 25,819.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387.84 : 72,569.58 = 17,215.80 : x
  2. Step 2: Convert to fraction form
    48,387.84/72,569.58 = 17,215.80/x
  3. Step 3: Cross multiply
    48,387.84x = 72,569.58 × 17,215.80
  4. Step 4: Simplify right side
    48,387.84x = 1,249,343,375.36
  5. Step 5: Solve for x
    x = 1,249,343,375.36/48,387.84
  6. Step 6: Final answer
    x = 25,819.37

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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.