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Finding the Fourth Proportional to 8,897.08, 12,278.50 and 4,918.11

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Solution

The fourth proportional to 8,897.08, 12,278.50 and 4,918.11 is: 6,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.08 : 12,278.50 = 4,918.11 : x
  2. Step 2: Convert to fraction form
    8,897.08/12,278.50 = 4,918.11/x
  3. Step 3: Cross multiply
    8,897.08x = 12,278.50 × 4,918.11
  4. Step 4: Simplify right side
    8,897.08x = 60,387,013.64
  5. Step 5: Solve for x
    x = 60,387,013.64/8,897.08
  6. Step 6: Final answer
    x = 6,787.28

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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.