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Finding the Fourth Proportional to 37,312.80, 55,999.80 and 37,021.20

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Solution

The fourth proportional to 37,312.80, 55,999.80 and 37,021.20 is: 55,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,312.80 : 55,999.80 = 37,021.20 : x
  2. Step 2: Convert to fraction form
    37,312.80/55,999.80 = 37,021.20/x
  3. Step 3: Cross multiply
    37,312.80x = 55,999.80 × 37,021.20
  4. Step 4: Simplify right side
    37,312.80x = 2,073,179,795.76
  5. Step 5: Solve for x
    x = 2,073,179,795.76/37,312.80
  6. Step 6: Final answer
    x = 55,562.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.