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Finding the Fourth Proportional to 10,589.90, 14,613.78 and 6,113.50

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Solution

The fourth proportional to 10,589.90, 14,613.78 and 6,113.50 is: 8,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,589.90 : 14,613.78 = 6,113.50 : x
  2. Step 2: Convert to fraction form
    10,589.90/14,613.78 = 6,113.50/x
  3. Step 3: Cross multiply
    10,589.90x = 14,613.78 × 6,113.50
  4. Step 4: Simplify right side
    10,589.90x = 89,341,344.03
  5. Step 5: Solve for x
    x = 89,341,344.03/10,589.90
  6. Step 6: Final answer
    x = 8,436.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.