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Finding the Fourth Proportional to 14,999.80, 22,499.70 and 14,359.90

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Solution

The fourth proportional to 14,999.80, 22,499.70 and 14,359.90 is: 21,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.80 : 22,499.70 = 14,359.90 : x
  2. Step 2: Convert to fraction form
    14,999.80/22,499.70 = 14,359.90/x
  3. Step 3: Cross multiply
    14,999.80x = 22,499.70 × 14,359.90
  4. Step 4: Simplify right side
    14,999.80x = 323,093,442.03
  5. Step 5: Solve for x
    x = 323,093,442.03/14,999.80
  6. Step 6: Final answer
    x = 21,539.85

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.