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Finding the Fourth Proportional to 41,218.40, 61,829.40 and 13,516.40

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Solution

The fourth proportional to 41,218.40, 61,829.40 and 13,516.40 is: 20,275.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,218.40 : 61,829.40 = 13,516.40 : x
  2. Step 2: Convert to fraction form
    41,218.40/61,829.40 = 13,516.40/x
  3. Step 3: Cross multiply
    41,218.40x = 61,829.40 × 13,516.40
  4. Step 4: Simplify right side
    41,218.40x = 835,710,902.16
  5. Step 5: Solve for x
    x = 835,710,902.16/41,218.40
  6. Step 6: Final answer
    x = 20,275.19

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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.