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Finding the Fourth Proportional to 10,366.65, 15,549.98 and 6,219.45

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Solution

The fourth proportional to 10,366.65, 15,549.98 and 6,219.45 is: 9,329.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.65 : 15,549.98 = 6,219.45 : x
  2. Step 2: Convert to fraction form
    10,366.65/15,549.98 = 6,219.45/x
  3. Step 3: Cross multiply
    10,366.65x = 15,549.98 × 6,219.45
  4. Step 4: Simplify right side
    10,366.65x = 96,712,292.01
  5. Step 5: Solve for x
    x = 96,712,292.01/10,366.65
  6. Step 6: Final answer
    x = 9,329.18

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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.