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Finding the Fourth Proportional to 75,424.48, 112,964.46 and 36,009.40

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Solution

The fourth proportional to 75,424.48, 112,964.46 and 36,009.40 is: 53,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,424.48 : 112,964.46 = 36,009.40 : x
  2. Step 2: Convert to fraction form
    75,424.48/112,964.46 = 36,009.40/x
  3. Step 3: Cross multiply
    75,424.48x = 112,964.46 × 36,009.40
  4. Step 4: Simplify right side
    75,424.48x = 4,067,782,425.92
  5. Step 5: Solve for x
    x = 4,067,782,425.92/75,424.48
  6. Step 6: Final answer
    x = 53,931.86

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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.