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Finding the Fourth Proportional to 65,592.45, 90,458.17 and 42,924.20

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Solution

The fourth proportional to 65,592.45, 90,458.17 and 42,924.20 is: 59,196.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,592.45 : 90,458.17 = 42,924.20 : x
  2. Step 2: Convert to fraction form
    65,592.45/90,458.17 = 42,924.20/x
  3. Step 3: Cross multiply
    65,592.45x = 90,458.17 × 42,924.20
  4. Step 4: Simplify right side
    65,592.45x = 3,882,844,021.11
  5. Step 5: Solve for x
    x = 3,882,844,021.11/65,592.45
  6. Step 6: Final answer
    x = 59,196.51

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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.