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Finding the Fourth Proportional to 27,091.84, 37,389.84 and 15,158.20

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Solution

The fourth proportional to 27,091.84, 37,389.84 and 15,158.20 is: 20,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,091.84 : 37,389.84 = 15,158.20 : x
  2. Step 2: Convert to fraction form
    27,091.84/37,389.84 = 15,158.20/x
  3. Step 3: Cross multiply
    27,091.84x = 37,389.84 × 15,158.20
  4. Step 4: Simplify right side
    27,091.84x = 566,762,672.69
  5. Step 5: Solve for x
    x = 566,762,672.69/27,091.84
  6. Step 6: Final answer
    x = 20,920.05

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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.