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Finding the Fourth Proportional to 13,047.52, 19,595.96 and 8,151.48

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Solution

The fourth proportional to 13,047.52, 19,595.96 and 8,151.48 is: 12,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.52 : 19,595.96 = 8,151.48 : x
  2. Step 2: Convert to fraction form
    13,047.52/19,595.96 = 8,151.48/x
  3. Step 3: Cross multiply
    13,047.52x = 19,595.96 × 8,151.48
  4. Step 4: Simplify right side
    13,047.52x = 159,736,076.02
  5. Step 5: Solve for x
    x = 159,736,076.02/13,047.52
  6. Step 6: Final answer
    x = 12,242.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.