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Finding the Fourth Proportional to 8,360.78, 11,542.10 and 6,468.08

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Solution

The fourth proportional to 8,360.78, 11,542.10 and 6,468.08 is: 8,929.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.78 : 11,542.10 = 6,468.08 : x
  2. Step 2: Convert to fraction form
    8,360.78/11,542.10 = 6,468.08/x
  3. Step 3: Cross multiply
    8,360.78x = 11,542.10 × 6,468.08
  4. Step 4: Simplify right side
    8,360.78x = 74,655,136.12
  5. Step 5: Solve for x
    x = 74,655,136.12/8,360.78
  6. Step 6: Final answer
    x = 8,929.21

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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.