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Finding the Fourth Proportional to 8,693.96, 11,988.98 and 5,549

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Solution

The fourth proportional to 8,693.96, 11,988.98 and 5,549 is: 7,652.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.96 : 11,988.98 = 5,549 : x
  2. Step 2: Convert to fraction form
    8,693.96/11,988.98 = 5,549/x
  3. Step 3: Cross multiply
    8,693.96x = 11,988.98 × 5,549
  4. Step 4: Simplify right side
    8,693.96x = 66,526,850.02
  5. Step 5: Solve for x
    x = 66,526,850.02/8,693.96
  6. Step 6: Final answer
    x = 7,652.08

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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.