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Finding the Fourth Proportional to 14,377.94, 21,437.92 and 14,115.50

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Solution

The fourth proportional to 14,377.94, 21,437.92 and 14,115.50 is: 21,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,377.94 : 21,437.92 = 14,115.50 : x
  2. Step 2: Convert to fraction form
    14,377.94/21,437.92 = 14,115.50/x
  3. Step 3: Cross multiply
    14,377.94x = 21,437.92 × 14,115.50
  4. Step 4: Simplify right side
    14,377.94x = 302,606,959.76
  5. Step 5: Solve for x
    x = 302,606,959.76/14,377.94
  6. Step 6: Final answer
    x = 21,046.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.