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Finding the Fourth Proportional to 14,888.57, 20,546.48 and 8,174.48

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Solution

The fourth proportional to 14,888.57, 20,546.48 and 8,174.48 is: 11,280.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.57 : 20,546.48 = 8,174.48 : x
  2. Step 2: Convert to fraction form
    14,888.57/20,546.48 = 8,174.48/x
  3. Step 3: Cross multiply
    14,888.57x = 20,546.48 × 8,174.48
  4. Step 4: Simplify right side
    14,888.57x = 167,956,646.23
  5. Step 5: Solve for x
    x = 167,956,646.23/14,888.57
  6. Step 6: Final answer
    x = 11,280.92

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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.