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Finding the Fourth Proportional to 55,013.60, 75,918.84 and 29,863.12

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Solution

The fourth proportional to 55,013.60, 75,918.84 and 29,863.12 is: 41,211.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,013.60 : 75,918.84 = 29,863.12 : x
  2. Step 2: Convert to fraction form
    55,013.60/75,918.84 = 29,863.12/x
  3. Step 3: Cross multiply
    55,013.60x = 75,918.84 × 29,863.12
  4. Step 4: Simplify right side
    55,013.60x = 2,267,173,429.18
  5. Step 5: Solve for x
    x = 2,267,173,429.18/55,013.60
  6. Step 6: Final answer
    x = 41,211.14

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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.