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Finding the Fourth Proportional to 61,194.84, 91,781.34 and 38,942.16

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Solution

The fourth proportional to 61,194.84, 91,781.34 and 38,942.16 is: 58,406.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,194.84 : 91,781.34 = 38,942.16 : x
  2. Step 2: Convert to fraction form
    61,194.84/91,781.34 = 38,942.16/x
  3. Step 3: Cross multiply
    61,194.84x = 91,781.34 × 38,942.16
  4. Step 4: Simplify right side
    61,194.84x = 3,574,163,627.29
  5. Step 5: Solve for x
    x = 3,574,163,627.29/61,194.84
  6. Step 6: Final answer
    x = 58,406.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.