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Finding the Fourth Proportional to 40,364.64, 55,686.96 and 25,452

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Solution

The fourth proportional to 40,364.64, 55,686.96 and 25,452 is: 35,113.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,364.64 : 55,686.96 = 25,452 : x
  2. Step 2: Convert to fraction form
    40,364.64/55,686.96 = 25,452/x
  3. Step 3: Cross multiply
    40,364.64x = 55,686.96 × 25,452
  4. Step 4: Simplify right side
    40,364.64x = 1,417,344,505.92
  5. Step 5: Solve for x
    x = 1,417,344,505.92/40,364.64
  6. Step 6: Final answer
    x = 35,113.52

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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.