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Finding the Fourth Proportional to 35,998.80, 53,998.20 and 11,038.65

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Solution

The fourth proportional to 35,998.80, 53,998.20 and 11,038.65 is: 16,557.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,998.80 : 53,998.20 = 11,038.65 : x
  2. Step 2: Convert to fraction form
    35,998.80/53,998.20 = 11,038.65/x
  3. Step 3: Cross multiply
    35,998.80x = 53,998.20 × 11,038.65
  4. Step 4: Simplify right side
    35,998.80x = 596,067,230.43
  5. Step 5: Solve for x
    x = 596,067,230.43/35,998.80
  6. Step 6: Final answer
    x = 16,557.98

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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.