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Finding the Fourth Proportional to 10,366.65, 15,549.98 and 9,913.05

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Solution

The fourth proportional to 10,366.65, 15,549.98 and 9,913.05 is: 14,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.65 : 15,549.98 = 9,913.05 : x
  2. Step 2: Convert to fraction form
    10,366.65/15,549.98 = 9,913.05/x
  3. Step 3: Cross multiply
    10,366.65x = 15,549.98 × 9,913.05
  4. Step 4: Simplify right side
    10,366.65x = 154,147,679.67
  5. Step 5: Solve for x
    x = 154,147,679.67/10,366.65
  6. Step 6: Final answer
    x = 14,869.58

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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.