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Finding the Fourth Proportional to 67,641.58, 93,360.09 and 39,350.98

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Solution

The fourth proportional to 67,641.58, 93,360.09 and 39,350.98 is: 54,312.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,641.58 : 93,360.09 = 39,350.98 : x
  2. Step 2: Convert to fraction form
    67,641.58/93,360.09 = 39,350.98/x
  3. Step 3: Cross multiply
    67,641.58x = 93,360.09 × 39,350.98
  4. Step 4: Simplify right side
    67,641.58x = 3,673,811,034.39
  5. Step 5: Solve for x
    x = 3,673,811,034.39/67,641.58
  6. Step 6: Final answer
    x = 54,312.91

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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.