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Finding the Fourth Proportional to 34,689.49, 52,034.23 and 8,394.23

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Solution

The fourth proportional to 34,689.49, 52,034.23 and 8,394.23 is: 12,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,689.49 : 52,034.23 = 8,394.23 : x
  2. Step 2: Convert to fraction form
    34,689.49/52,034.23 = 8,394.23/x
  3. Step 3: Cross multiply
    34,689.49x = 52,034.23 × 8,394.23
  4. Step 4: Simplify right side
    34,689.49x = 436,787,294.49
  5. Step 5: Solve for x
    x = 436,787,294.49/34,689.49
  6. Step 6: Final answer
    x = 12,591.35

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Double scale
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Similar ratio
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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.