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Finding the Fourth Proportional to 18,569.56, 27,854.28 and 4,718.56

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Solution

The fourth proportional to 18,569.56, 27,854.28 and 4,718.56 is: 7,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.56 : 27,854.28 = 4,718.56 : x
  2. Step 2: Convert to fraction form
    18,569.56/27,854.28 = 4,718.56/x
  3. Step 3: Cross multiply
    18,569.56x = 27,854.28 × 4,718.56
  4. Step 4: Simplify right side
    18,569.56x = 131,432,091.44
  5. Step 5: Solve for x
    x = 131,432,091.44/18,569.56
  6. Step 6: Final answer
    x = 7,077.82

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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.