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Finding the Fourth Proportional to 58,338.70, 80,473.86 and 36,820.80

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Solution

The fourth proportional to 58,338.70, 80,473.86 and 36,820.80 is: 50,791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,338.70 : 80,473.86 = 36,820.80 : x
  2. Step 2: Convert to fraction form
    58,338.70/80,473.86 = 36,820.80/x
  3. Step 3: Cross multiply
    58,338.70x = 80,473.86 × 36,820.80
  4. Step 4: Simplify right side
    58,338.70x = 2,963,111,904.29
  5. Step 5: Solve for x
    x = 2,963,111,904.29/58,338.70
  6. Step 6: Final answer
    x = 50,791.53

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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.