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Finding the Fourth Proportional to 65,628.67, 90,567.84 and 36,948.82

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Solution

The fourth proportional to 65,628.67, 90,567.84 and 36,948.82 is: 50,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,628.67 : 90,567.84 = 36,948.82 : x
  2. Step 2: Convert to fraction form
    65,628.67/90,567.84 = 36,948.82/x
  3. Step 3: Cross multiply
    65,628.67x = 90,567.84 × 36,948.82
  4. Step 4: Simplify right side
    65,628.67x = 3,346,374,817.95
  5. Step 5: Solve for x
    x = 3,346,374,817.95/65,628.67
  6. Step 6: Final answer
    x = 50,989.53

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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.