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Finding the Fourth Proportional to 18,569.52, 27,863.22 and 8,707.20

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Solution

The fourth proportional to 18,569.52, 27,863.22 and 8,707.20 is: 13,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.52 : 27,863.22 = 8,707.20 : x
  2. Step 2: Convert to fraction form
    18,569.52/27,863.22 = 8,707.20/x
  3. Step 3: Cross multiply
    18,569.52x = 27,863.22 × 8,707.20
  4. Step 4: Simplify right side
    18,569.52x = 242,610,629.18
  5. Step 5: Solve for x
    x = 242,610,629.18/18,569.52
  6. Step 6: Final answer
    x = 13,064.99

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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.