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Finding the Fourth Proportional to 14,833.90, 20,472.60 and 8,865.52

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Solution

The fourth proportional to 14,833.90, 20,472.60 and 8,865.52 is: 12,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,833.90 : 20,472.60 = 8,865.52 : x
  2. Step 2: Convert to fraction form
    14,833.90/20,472.60 = 8,865.52/x
  3. Step 3: Cross multiply
    14,833.90x = 20,472.60 × 8,865.52
  4. Step 4: Simplify right side
    14,833.90x = 181,500,244.75
  5. Step 5: Solve for x
    x = 181,500,244.75/14,833.90
  6. Step 6: Final answer
    x = 12,235.50

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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.