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Finding the Fourth Proportional to 37,192.50, 51,326.87 and 20,425.50

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Solution

The fourth proportional to 37,192.50, 51,326.87 and 20,425.50 is: 28,187.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,192.50 : 51,326.87 = 20,425.50 : x
  2. Step 2: Convert to fraction form
    37,192.50/51,326.87 = 20,425.50/x
  3. Step 3: Cross multiply
    37,192.50x = 51,326.87 × 20,425.50
  4. Step 4: Simplify right side
    37,192.50x = 1,048,376,881.06
  5. Step 5: Solve for x
    x = 1,048,376,881.06/37,192.50
  6. Step 6: Final answer
    x = 28,187.86

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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.