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Finding the Fourth Proportional to 69,386.40, 104,079.84 and 16,795.80

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Solution

The fourth proportional to 69,386.40, 104,079.84 and 16,795.80 is: 25,193.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,386.40 : 104,079.84 = 16,795.80 : x
  2. Step 2: Convert to fraction form
    69,386.40/104,079.84 = 16,795.80/x
  3. Step 3: Cross multiply
    69,386.40x = 104,079.84 × 16,795.80
  4. Step 4: Simplify right side
    69,386.40x = 1,748,104,176.67
  5. Step 5: Solve for x
    x = 1,748,104,176.67/69,386.40
  6. Step 6: Final answer
    x = 25,193.76

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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.