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Finding the Fourth Proportional to 61,589.69, 84,994.18 and 38,938.91

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Solution

The fourth proportional to 61,589.69, 84,994.18 and 38,938.91 is: 53,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,589.69 : 84,994.18 = 38,938.91 : x
  2. Step 2: Convert to fraction form
    61,589.69/84,994.18 = 38,938.91/x
  3. Step 3: Cross multiply
    61,589.69x = 84,994.18 × 38,938.91
  4. Step 4: Simplify right side
    61,589.69x = 3,309,580,203.23
  5. Step 5: Solve for x
    x = 3,309,580,203.23/61,589.69
  6. Step 6: Final answer
    x = 53,735.95

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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.