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Finding the Fourth Proportional to 14,424.96, 19,907.96 and 8,456.88

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Solution

The fourth proportional to 14,424.96, 19,907.96 and 8,456.88 is: 11,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.96 : 19,907.96 = 8,456.88 : x
  2. Step 2: Convert to fraction form
    14,424.96/19,907.96 = 8,456.88/x
  3. Step 3: Cross multiply
    14,424.96x = 19,907.96 × 8,456.88
  4. Step 4: Simplify right side
    14,424.96x = 168,359,228.76
  5. Step 5: Solve for x
    x = 168,359,228.76/14,424.96
  6. Step 6: Final answer
    x = 11,671.38

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Half scale
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Double scale
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Similar ratio
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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.