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Finding the Fourth Proportional to 59,417.64, 82,021.64 and 40,040.80

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Solution

The fourth proportional to 59,417.64, 82,021.64 and 40,040.80 is: 55,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,417.64 : 82,021.64 = 40,040.80 : x
  2. Step 2: Convert to fraction form
    59,417.64/82,021.64 = 40,040.80/x
  3. Step 3: Cross multiply
    59,417.64x = 82,021.64 × 40,040.80
  4. Step 4: Simplify right side
    59,417.64x = 3,284,212,082.91
  5. Step 5: Solve for x
    x = 3,284,212,082.91/59,417.64
  6. Step 6: Final answer
    x = 55,273.35

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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.