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Finding the Fourth Proportional to 55,665.48, 83,347.56 and 40,761.48

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Solution

The fourth proportional to 55,665.48, 83,347.56 and 40,761.48 is: 61,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,665.48 : 83,347.56 = 40,761.48 : x
  2. Step 2: Convert to fraction form
    55,665.48/83,347.56 = 40,761.48/x
  3. Step 3: Cross multiply
    55,665.48x = 83,347.56 × 40,761.48
  4. Step 4: Simplify right side
    55,665.48x = 3,397,369,899.99
  5. Step 5: Solve for x
    x = 3,397,369,899.99/55,665.48
  6. Step 6: Final answer
    x = 61,031.90

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1.5x scale

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.