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Finding the Fourth Proportional to 51,491.70, 77,237.55 and 14,555.70

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Solution

The fourth proportional to 51,491.70, 77,237.55 and 14,555.70 is: 21,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,491.70 : 77,237.55 = 14,555.70 : x
  2. Step 2: Convert to fraction form
    51,491.70/77,237.55 = 14,555.70/x
  3. Step 3: Cross multiply
    51,491.70x = 77,237.55 × 14,555.70
  4. Step 4: Simplify right side
    51,491.70x = 1,124,246,606.54
  5. Step 5: Solve for x
    x = 1,124,246,606.54/51,491.70
  6. Step 6: Final answer
    x = 21,833.55

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Similar ratio
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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.