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Finding the Fourth Proportional to 75,311.79, 112,888.83 and 25,374.63

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Solution

The fourth proportional to 75,311.79, 112,888.83 and 25,374.63 is: 38,035.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,311.79 : 112,888.83 = 25,374.63 : x
  2. Step 2: Convert to fraction form
    75,311.79/112,888.83 = 25,374.63/x
  3. Step 3: Cross multiply
    75,311.79x = 112,888.83 × 25,374.63
  4. Step 4: Simplify right side
    75,311.79x = 2,864,512,292.38
  5. Step 5: Solve for x
    x = 2,864,512,292.38/75,311.79
  6. Step 6: Final answer
    x = 38,035.38

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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.