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Finding the Fourth Proportional to 60,699.53, 83,778.77 and 39,441.89

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Solution

The fourth proportional to 60,699.53, 83,778.77 and 39,441.89 is: 54,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,699.53 : 83,778.77 = 39,441.89 : x
  2. Step 2: Convert to fraction form
    60,699.53/83,778.77 = 39,441.89/x
  3. Step 3: Cross multiply
    60,699.53x = 83,778.77 × 39,441.89
  4. Step 4: Simplify right side
    60,699.53x = 3,304,393,030.68
  5. Step 5: Solve for x
    x = 3,304,393,030.68/60,699.53
  6. Step 6: Final answer
    x = 54,438.53

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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.