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Finding the Fourth Proportional to 37,275, 51,437.14 and 20,279.08

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Solution

The fourth proportional to 37,275, 51,437.14 and 20,279.08 is: 27,983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,275 : 51,437.14 = 20,279.08 : x
  2. Step 2: Convert to fraction form
    37,275/51,437.14 = 20,279.08/x
  3. Step 3: Cross multiply
    37,275x = 51,437.14 × 20,279.08
  4. Step 4: Simplify right side
    37,275x = 1,043,097,877.03
  5. Step 5: Solve for x
    x = 1,043,097,877.03/37,275
  6. Step 6: Final answer
    x = 27,983.85

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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.