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Finding the Fourth Proportional to 8,337.33, 11,503.82 and 4,978.92

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Solution

The fourth proportional to 8,337.33, 11,503.82 and 4,978.92 is: 6,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.33 : 11,503.82 = 4,978.92 : x
  2. Step 2: Convert to fraction form
    8,337.33/11,503.82 = 4,978.92/x
  3. Step 3: Cross multiply
    8,337.33x = 11,503.82 × 4,978.92
  4. Step 4: Simplify right side
    8,337.33x = 57,276,599.47
  5. Step 5: Solve for x
    x = 57,276,599.47/8,337.33
  6. Step 6: Final answer
    x = 6,869.90

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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.