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Finding the Fourth Proportional to 17,390.61, 23,999.03 and 9,432.89

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Solution

The fourth proportional to 17,390.61, 23,999.03 and 9,432.89 is: 13,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.61 : 23,999.03 = 9,432.89 : x
  2. Step 2: Convert to fraction form
    17,390.61/23,999.03 = 9,432.89/x
  3. Step 3: Cross multiply
    17,390.61x = 23,999.03 × 9,432.89
  4. Step 4: Simplify right side
    17,390.61x = 226,380,168.31
  5. Step 5: Solve for x
    x = 226,380,168.31/17,390.61
  6. Step 6: Final answer
    x = 13,017.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.