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Finding the Fourth Proportional to 51,927.70, 77,891.55 and 16,870.90

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Solution

The fourth proportional to 51,927.70, 77,891.55 and 16,870.90 is: 25,306.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,927.70 : 77,891.55 = 16,870.90 : x
  2. Step 2: Convert to fraction form
    51,927.70/77,891.55 = 16,870.90/x
  3. Step 3: Cross multiply
    51,927.70x = 77,891.55 × 16,870.90
  4. Step 4: Simplify right side
    51,927.70x = 1,314,100,550.90
  5. Step 5: Solve for x
    x = 1,314,100,550.90/51,927.70
  6. Step 6: Final answer
    x = 25,306.35

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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.