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Finding the Fourth Proportional to 8,189.52, 11,291.90 and 6,848.16

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Solution

The fourth proportional to 8,189.52, 11,291.90 and 6,848.16 is: 9,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.52 : 11,291.90 = 6,848.16 : x
  2. Step 2: Convert to fraction form
    8,189.52/11,291.90 = 6,848.16/x
  3. Step 3: Cross multiply
    8,189.52x = 11,291.90 × 6,848.16
  4. Step 4: Simplify right side
    8,189.52x = 77,328,737.90
  5. Step 5: Solve for x
    x = 77,328,737.90/8,189.52
  6. Step 6: Final answer
    x = 9,442.40

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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.