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Finding the Fourth Proportional to 67,644.92, 93,368.80 and 39,356.08

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Solution

The fourth proportional to 67,644.92, 93,368.80 and 39,356.08 is: 54,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,644.92 : 93,368.80 = 39,356.08 : x
  2. Step 2: Convert to fraction form
    67,644.92/93,368.80 = 39,356.08/x
  3. Step 3: Cross multiply
    67,644.92x = 93,368.80 × 39,356.08
  4. Step 4: Simplify right side
    67,644.92x = 3,674,629,778.08
  5. Step 5: Solve for x
    x = 3,674,629,778.08/67,644.92
  6. Step 6: Final answer
    x = 54,322.33

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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.