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Finding the Fourth Proportional to 65,577.68, 90,497.48 and 35,770.32

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Solution

The fourth proportional to 65,577.68, 90,497.48 and 35,770.32 is: 49,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,577.68 : 90,497.48 = 35,770.32 : x
  2. Step 2: Convert to fraction form
    65,577.68/90,497.48 = 35,770.32/x
  3. Step 3: Cross multiply
    65,577.68x = 90,497.48 × 35,770.32
  4. Step 4: Simplify right side
    65,577.68x = 3,237,123,818.79
  5. Step 5: Solve for x
    x = 3,237,123,818.79/65,577.68
  6. Step 6: Final answer
    x = 49,363.20

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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.