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Finding the Fourth Proportional to 69,447.94, 104,176.80 and 34,378.18

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Solution

The fourth proportional to 69,447.94, 104,176.80 and 34,378.18 is: 51,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,447.94 : 104,176.80 = 34,378.18 : x
  2. Step 2: Convert to fraction form
    69,447.94/104,176.80 = 34,378.18/x
  3. Step 3: Cross multiply
    69,447.94x = 104,176.80 × 34,378.18
  4. Step 4: Simplify right side
    69,447.94x = 3,581,408,782.22
  5. Step 5: Solve for x
    x = 3,581,408,782.22/69,447.94
  6. Step 6: Final answer
    x = 51,569.69

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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.