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Finding the Fourth Proportional to 34,478.70, 51,718.05 and 16,944.90

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Solution

The fourth proportional to 34,478.70, 51,718.05 and 16,944.90 is: 25,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,478.70 : 51,718.05 = 16,944.90 : x
  2. Step 2: Convert to fraction form
    34,478.70/51,718.05 = 16,944.90/x
  3. Step 3: Cross multiply
    34,478.70x = 51,718.05 × 16,944.90
  4. Step 4: Simplify right side
    34,478.70x = 876,357,185.45
  5. Step 5: Solve for x
    x = 876,357,185.45/34,478.70
  6. Step 6: Final answer
    x = 25,417.35

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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.