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Finding the Fourth Proportional to 34,689.40, 52,034.10 and 34,343.80

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Solution

The fourth proportional to 34,689.40, 52,034.10 and 34,343.80 is: 51,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,689.40 : 52,034.10 = 34,343.80 : x
  2. Step 2: Convert to fraction form
    34,689.40/52,034.10 = 34,343.80/x
  3. Step 3: Cross multiply
    34,689.40x = 52,034.10 × 34,343.80
  4. Step 4: Simplify right side
    34,689.40x = 1,787,048,723.58
  5. Step 5: Solve for x
    x = 1,787,048,723.58/34,689.40
  6. Step 6: Final answer
    x = 51,515.70

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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.