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Finding the Fourth Proportional to 27,602.40, 38,091.08 and 15,027.12

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Solution

The fourth proportional to 27,602.40, 38,091.08 and 15,027.12 is: 20,737.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,602.40 : 38,091.08 = 15,027.12 : x
  2. Step 2: Convert to fraction form
    27,602.40/38,091.08 = 15,027.12/x
  3. Step 3: Cross multiply
    27,602.40x = 38,091.08 × 15,027.12
  4. Step 4: Simplify right side
    27,602.40x = 572,399,230.09
  5. Step 5: Solve for x
    x = 572,399,230.09/27,602.40
  6. Step 6: Final answer
    x = 20,737.30

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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.