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Finding the Fourth Proportional to 108,513.28, 162,786.24 and 38,393.28

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Solution

The fourth proportional to 108,513.28, 162,786.24 and 38,393.28 is: 57,595.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,513.28 : 162,786.24 = 38,393.28 : x
  2. Step 2: Convert to fraction form
    108,513.28/162,786.24 = 38,393.28/x
  3. Step 3: Cross multiply
    108,513.28x = 162,786.24 × 38,393.28
  4. Step 4: Simplify right side
    108,513.28x = 6,249,897,692.47
  5. Step 5: Solve for x
    x = 6,249,897,692.47/108,513.28
  6. Step 6: Final answer
    x = 57,595.69

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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.