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Finding the Fourth Proportional to 67,296.68, 92,869.42 and 39,018.76

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Solution

The fourth proportional to 67,296.68, 92,869.42 and 39,018.76 is: 53,845.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,296.68 : 92,869.42 = 39,018.76 : x
  2. Step 2: Convert to fraction form
    67,296.68/92,869.42 = 39,018.76/x
  3. Step 3: Cross multiply
    67,296.68x = 92,869.42 × 39,018.76
  4. Step 4: Simplify right side
    67,296.68x = 3,623,649,610.32
  5. Step 5: Solve for x
    x = 3,623,649,610.32/67,296.68
  6. Step 6: Final answer
    x = 53,845.89

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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.