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Finding the Fourth Proportional to 73,925.68, 102,017.36 and 39,934.16

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Solution

The fourth proportional to 73,925.68, 102,017.36 and 39,934.16 is: 55,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,925.68 : 102,017.36 = 39,934.16 : x
  2. Step 2: Convert to fraction form
    73,925.68/102,017.36 = 39,934.16/x
  3. Step 3: Cross multiply
    73,925.68x = 102,017.36 × 39,934.16
  4. Step 4: Simplify right side
    73,925.68x = 4,073,977,877.49
  5. Step 5: Solve for x
    x = 4,073,977,877.49/73,925.68
  6. Step 6: Final answer
    x = 55,109.10

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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.