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Finding the Fourth Proportional to 14,331.99, 19,778.99 and 8,363.30

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Solution

The fourth proportional to 14,331.99, 19,778.99 and 8,363.30 is: 11,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.99 : 19,778.99 = 8,363.30 : x
  2. Step 2: Convert to fraction form
    14,331.99/19,778.99 = 8,363.30/x
  3. Step 3: Cross multiply
    14,331.99x = 19,778.99 × 8,363.30
  4. Step 4: Simplify right side
    14,331.99x = 165,417,597.61
  5. Step 5: Solve for x
    x = 165,417,597.61/14,331.99
  6. Step 6: Final answer
    x = 11,541.85

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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.