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Finding the Fourth Proportional to 14,437.98, 19,929.71 and 8,474.65

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Solution

The fourth proportional to 14,437.98, 19,929.71 and 8,474.65 is: 11,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,437.98 : 19,929.71 = 8,474.65 : x
  2. Step 2: Convert to fraction form
    14,437.98/19,929.71 = 8,474.65/x
  3. Step 3: Cross multiply
    14,437.98x = 19,929.71 × 8,474.65
  4. Step 4: Simplify right side
    14,437.98x = 168,897,316.85
  5. Step 5: Solve for x
    x = 168,897,316.85/14,437.98
  6. Step 6: Final answer
    x = 11,698.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.