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Finding the Fourth Proportional to 58,616.81, 80,890.13 and 33,122.63

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Solution

The fourth proportional to 58,616.81, 80,890.13 and 33,122.63 is: 45,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,616.81 : 80,890.13 = 33,122.63 : x
  2. Step 2: Convert to fraction form
    58,616.81/80,890.13 = 33,122.63/x
  3. Step 3: Cross multiply
    58,616.81x = 80,890.13 × 33,122.63
  4. Step 4: Simplify right side
    58,616.81x = 2,679,294,131.67
  5. Step 5: Solve for x
    x = 2,679,294,131.67/58,616.81
  6. Step 6: Final answer
    x = 45,708.63

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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.