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Finding the Fourth Proportional to 12,548.79, 17,311.19 and 10,558.62

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Solution

The fourth proportional to 12,548.79, 17,311.19 and 10,558.62 is: 14,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.79 : 17,311.19 = 10,558.62 : x
  2. Step 2: Convert to fraction form
    12,548.79/17,311.19 = 10,558.62/x
  3. Step 3: Cross multiply
    12,548.79x = 17,311.19 × 10,558.62
  4. Step 4: Simplify right side
    12,548.79x = 182,782,224.16
  5. Step 5: Solve for x
    x = 182,782,224.16/12,548.79
  6. Step 6: Final answer
    x = 14,565.72

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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.