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Finding the Fourth Proportional to 14,089.65, 19,443.47 and 7,801.89

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Solution

The fourth proportional to 14,089.65, 19,443.47 and 7,801.89 is: 10,766.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.65 : 19,443.47 = 7,801.89 : x
  2. Step 2: Convert to fraction form
    14,089.65/19,443.47 = 7,801.89/x
  3. Step 3: Cross multiply
    14,089.65x = 19,443.47 × 7,801.89
  4. Step 4: Simplify right side
    14,089.65x = 151,695,716.94
  5. Step 5: Solve for x
    x = 151,695,716.94/14,089.65
  6. Step 6: Final answer
    x = 10,766.47

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Half scale
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Double scale
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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.