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Finding the Fourth Proportional to 25,875.62, 38,815.87 and 7,154.90

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Solution

The fourth proportional to 25,875.62, 38,815.87 and 7,154.90 is: 10,733.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,875.62 : 38,815.87 = 7,154.90 : x
  2. Step 2: Convert to fraction form
    25,875.62/38,815.87 = 7,154.90/x
  3. Step 3: Cross multiply
    25,875.62x = 38,815.87 × 7,154.90
  4. Step 4: Simplify right side
    25,875.62x = 277,723,668.26
  5. Step 5: Solve for x
    x = 277,723,668.26/25,875.62
  6. Step 6: Final answer
    x = 10,733.02

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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.