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Finding the Fourth Proportional to 16,348.78, 22,560.98 and 9,178.86

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Solution

The fourth proportional to 16,348.78, 22,560.98 and 9,178.86 is: 12,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,348.78 : 22,560.98 = 9,178.86 : x
  2. Step 2: Convert to fraction form
    16,348.78/22,560.98 = 9,178.86/x
  3. Step 3: Cross multiply
    16,348.78x = 22,560.98 × 9,178.86
  4. Step 4: Simplify right side
    16,348.78x = 207,084,076.88
  5. Step 5: Solve for x
    x = 207,084,076.88/16,348.78
  6. Step 6: Final answer
    x = 12,666.64

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