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Finding the Fourth Proportional to 65,775.24, 90,770.82 and 37,480.32

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Solution

The fourth proportional to 65,775.24, 90,770.82 and 37,480.32 is: 51,723.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,775.24 : 90,770.82 = 37,480.32 : x
  2. Step 2: Convert to fraction form
    65,775.24/90,770.82 = 37,480.32/x
  3. Step 3: Cross multiply
    65,775.24x = 90,770.82 × 37,480.32
  4. Step 4: Simplify right side
    65,775.24x = 3,402,119,380.26
  5. Step 5: Solve for x
    x = 3,402,119,380.26/65,775.24
  6. Step 6: Final answer
    x = 51,723.41

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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.