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Finding the Fourth Proportional to 27,206.79, 37,542.80 and 15,267.80

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Solution

The fourth proportional to 27,206.79, 37,542.80 and 15,267.80 is: 21,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,206.79 : 37,542.80 = 15,267.80 : x
  2. Step 2: Convert to fraction form
    27,206.79/37,542.80 = 15,267.80/x
  3. Step 3: Cross multiply
    27,206.79x = 37,542.80 × 15,267.80
  4. Step 4: Simplify right side
    27,206.79x = 573,195,697.79
  5. Step 5: Solve for x
    x = 573,195,697.79/27,206.79
  6. Step 6: Final answer
    x = 21,068.11

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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.