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Finding the Fourth Proportional to 58,239.77, 80,323.92 and 39,113.74

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Solution

The fourth proportional to 58,239.77, 80,323.92 and 39,113.74 is: 53,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,239.77 : 80,323.92 = 39,113.74 : x
  2. Step 2: Convert to fraction form
    58,239.77/80,323.92 = 39,113.74/x
  3. Step 3: Cross multiply
    58,239.77x = 80,323.92 × 39,113.74
  4. Step 4: Simplify right side
    58,239.77x = 3,141,769,023.07
  5. Step 5: Solve for x
    x = 3,141,769,023.07/58,239.77
  6. Step 6: Final answer
    x = 53,945.43

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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.