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Finding the Fourth Proportional to 91,863.70, 137,795.55 and 25,314.10

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Solution

The fourth proportional to 91,863.70, 137,795.55 and 25,314.10 is: 37,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,863.70 : 137,795.55 = 25,314.10 : x
  2. Step 2: Convert to fraction form
    91,863.70/137,795.55 = 25,314.10/x
  3. Step 3: Cross multiply
    91,863.70x = 137,795.55 × 25,314.10
  4. Step 4: Simplify right side
    91,863.70x = 3,488,170,332.26
  5. Step 5: Solve for x
    x = 3,488,170,332.26/91,863.70
  6. Step 6: Final answer
    x = 37,971.15

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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.