Home / 37,678.20-51,940.40-28,710.14

Finding the Fourth Proportional to 37,678.20, 51,940.40 and 28,710.14

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Solution

The fourth proportional to 37,678.20, 51,940.40 and 28,710.14 is: 39,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,678.20 : 51,940.40 = 28,710.14 : x
  2. Step 2: Convert to fraction form
    37,678.20/51,940.40 = 28,710.14/x
  3. Step 3: Cross multiply
    37,678.20x = 51,940.40 × 28,710.14
  4. Step 4: Simplify right side
    37,678.20x = 1,491,216,155.66
  5. Step 5: Solve for x
    x = 1,491,216,155.66/37,678.20
  6. Step 6: Final answer
    x = 39,577.69

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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.