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Finding the Fourth Proportional to 6,877.68, 9,487.72 and 4,355.52

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Solution

The fourth proportional to 6,877.68, 9,487.72 and 4,355.52 is: 6,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.68 : 9,487.72 = 4,355.52 : x
  2. Step 2: Convert to fraction form
    6,877.68/9,487.72 = 4,355.52/x
  3. Step 3: Cross multiply
    6,877.68x = 9,487.72 × 4,355.52
  4. Step 4: Simplify right side
    6,877.68x = 41,323,954.21
  5. Step 5: Solve for x
    x = 41,323,954.21/6,877.68
  6. Step 6: Final answer
    x = 6,008.41

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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.