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Finding the Fourth Proportional to 10,633.56, 15,870.72 and 9,933.72

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Solution

The fourth proportional to 10,633.56, 15,870.72 and 9,933.72 is: 14,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,633.56 : 15,870.72 = 9,933.72 : x
  2. Step 2: Convert to fraction form
    10,633.56/15,870.72 = 9,933.72/x
  3. Step 3: Cross multiply
    10,633.56x = 15,870.72 × 9,933.72
  4. Step 4: Simplify right side
    10,633.56x = 157,655,288.68
  5. Step 5: Solve for x
    x = 157,655,288.68/10,633.56
  6. Step 6: Final answer
    x = 14,826.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.