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Finding the Fourth Proportional to 67,674.31, 93,369.08 and 39,374.53

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Solution

The fourth proportional to 67,674.31, 93,369.08 and 39,374.53 is: 54,324.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,674.31 : 93,369.08 = 39,374.53 : x
  2. Step 2: Convert to fraction form
    67,674.31/93,369.08 = 39,374.53/x
  3. Step 3: Cross multiply
    67,674.31x = 93,369.08 × 39,374.53
  4. Step 4: Simplify right side
    67,674.31x = 3,676,363,641.53
  5. Step 5: Solve for x
    x = 3,676,363,641.53/67,674.31
  6. Step 6: Final answer
    x = 54,324.36

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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.