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Finding the Fourth Proportional to 55,920.74, 77,195.80 and 36,810.54

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Solution

The fourth proportional to 55,920.74, 77,195.80 and 36,810.54 is: 50,815.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,920.74 : 77,195.80 = 36,810.54 : x
  2. Step 2: Convert to fraction form
    55,920.74/77,195.80 = 36,810.54/x
  3. Step 3: Cross multiply
    55,920.74x = 77,195.80 × 36,810.54
  4. Step 4: Simplify right side
    55,920.74x = 2,841,619,343.09
  5. Step 5: Solve for x
    x = 2,841,619,343.09/55,920.74
  6. Step 6: Final answer
    x = 50,815.13

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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.