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Finding the Fourth Proportional to 59,969.79, 82,782.95 and 40,912.47

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Solution

The fourth proportional to 59,969.79, 82,782.95 and 40,912.47 is: 56,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,969.79 : 82,782.95 = 40,912.47 : x
  2. Step 2: Convert to fraction form
    59,969.79/82,782.95 = 40,912.47/x
  3. Step 3: Cross multiply
    59,969.79x = 82,782.95 × 40,912.47
  4. Step 4: Simplify right side
    59,969.79x = 3,386,854,753.82
  5. Step 5: Solve for x
    x = 3,386,854,753.82/59,969.79
  6. Step 6: Final answer
    x = 56,476.01

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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.