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Finding the Fourth Proportional to 69,762.40, 104,580.31 and 25,357.79

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Solution

The fourth proportional to 69,762.40, 104,580.31 and 25,357.79 is: 38,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,762.40 : 104,580.31 = 25,357.79 : x
  2. Step 2: Convert to fraction form
    69,762.40/104,580.31 = 25,357.79/x
  3. Step 3: Cross multiply
    69,762.40x = 104,580.31 × 25,357.79
  4. Step 4: Simplify right side
    69,762.40x = 2,651,925,539.11
  5. Step 5: Solve for x
    x = 2,651,925,539.11/69,762.40
  6. Step 6: Final answer
    x = 38,013.68

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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.