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Finding the Fourth Proportional to 74,616.80, 111,925.20 and 25,368.80

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Solution

The fourth proportional to 74,616.80, 111,925.20 and 25,368.80 is: 38,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,616.80 : 111,925.20 = 25,368.80 : x
  2. Step 2: Convert to fraction form
    74,616.80/111,925.20 = 25,368.80/x
  3. Step 3: Cross multiply
    74,616.80x = 111,925.20 × 25,368.80
  4. Step 4: Simplify right side
    74,616.80x = 2,839,408,013.76
  5. Step 5: Solve for x
    x = 2,839,408,013.76/74,616.80
  6. Step 6: Final answer
    x = 38,053.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.