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Finding the Fourth Proportional to 16,353.56, 22,568.65 and 9,639.47

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Solution

The fourth proportional to 16,353.56, 22,568.65 and 9,639.47 is: 13,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,353.56 : 22,568.65 = 9,639.47 : x
  2. Step 2: Convert to fraction form
    16,353.56/22,568.65 = 9,639.47/x
  3. Step 3: Cross multiply
    16,353.56x = 22,568.65 × 9,639.47
  4. Step 4: Simplify right side
    16,353.56x = 217,549,856.94
  5. Step 5: Solve for x
    x = 217,549,856.94/16,353.56
  6. Step 6: Final answer
    x = 13,302.90

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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.