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Finding the Fourth Proportional to 17,248.78, 25,875.02 and 7,385.41

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Solution

The fourth proportional to 17,248.78, 25,875.02 and 7,385.41 is: 11,078.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,248.78 : 25,875.02 = 7,385.41 : x
  2. Step 2: Convert to fraction form
    17,248.78/25,875.02 = 7,385.41/x
  3. Step 3: Cross multiply
    17,248.78x = 25,875.02 × 7,385.41
  4. Step 4: Simplify right side
    17,248.78x = 191,097,631.46
  5. Step 5: Solve for x
    x = 191,097,631.46/17,248.78
  6. Step 6: Final answer
    x = 11,078.91

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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.