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Finding the Fourth Proportional to 61,395.40, 92,121.05 and 29,788.40

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Solution

The fourth proportional to 61,395.40, 92,121.05 and 29,788.40 is: 44,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,395.40 : 92,121.05 = 29,788.40 : x
  2. Step 2: Convert to fraction form
    61,395.40/92,121.05 = 29,788.40/x
  3. Step 3: Cross multiply
    61,395.40x = 92,121.05 × 29,788.40
  4. Step 4: Simplify right side
    61,395.40x = 2,744,138,685.82
  5. Step 5: Solve for x
    x = 2,744,138,685.82/61,395.40
  6. Step 6: Final answer
    x = 44,696.16

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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.