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Finding the Fourth Proportional to 37,308.88, 51,486.30 and 20,541.88

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Solution

The fourth proportional to 37,308.88, 51,486.30 and 20,541.88 is: 28,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,308.88 : 51,486.30 = 20,541.88 : x
  2. Step 2: Convert to fraction form
    37,308.88/51,486.30 = 20,541.88/x
  3. Step 3: Cross multiply
    37,308.88x = 51,486.30 × 20,541.88
  4. Step 4: Simplify right side
    37,308.88x = 1,057,625,396.24
  5. Step 5: Solve for x
    x = 1,057,625,396.24/37,308.88
  6. Step 6: Final answer
    x = 28,347.82

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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.