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Finding the Fourth Proportional to 14,049.66, 19,389.66 and 8,386.14

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Solution

The fourth proportional to 14,049.66, 19,389.66 and 8,386.14 is: 11,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.66 : 19,389.66 = 8,386.14 : x
  2. Step 2: Convert to fraction form
    14,049.66/19,389.66 = 8,386.14/x
  3. Step 3: Cross multiply
    14,049.66x = 19,389.66 × 8,386.14
  4. Step 4: Simplify right side
    14,049.66x = 162,604,491.75
  5. Step 5: Solve for x
    x = 162,604,491.75/14,049.66
  6. Step 6: Final answer
    x = 11,573.55

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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.