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Finding the Fourth Proportional to 65,799.20, 90,805.26 and 37,500.32

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Solution

The fourth proportional to 65,799.20, 90,805.26 and 37,500.32 is: 51,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,799.20 : 90,805.26 = 37,500.32 : x
  2. Step 2: Convert to fraction form
    65,799.20/90,805.26 = 37,500.32/x
  3. Step 3: Cross multiply
    65,799.20x = 90,805.26 × 37,500.32
  4. Step 4: Simplify right side
    65,799.20x = 3,405,226,307.68
  5. Step 5: Solve for x
    x = 3,405,226,307.68/65,799.20
  6. Step 6: Final answer
    x = 51,751.79

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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.