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Finding the Fourth Proportional to 34,013.80, 51,020.70 and 15,545.80

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Solution

The fourth proportional to 34,013.80, 51,020.70 and 15,545.80 is: 23,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,013.80 : 51,020.70 = 15,545.80 : x
  2. Step 2: Convert to fraction form
    34,013.80/51,020.70 = 15,545.80/x
  3. Step 3: Cross multiply
    34,013.80x = 51,020.70 × 15,545.80
  4. Step 4: Simplify right side
    34,013.80x = 793,157,598.06
  5. Step 5: Solve for x
    x = 793,157,598.06/34,013.80
  6. Step 6: Final answer
    x = 23,318.70

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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.