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Finding the Fourth Proportional to 12,041.90, 18,053.13 and 11,069.90

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Solution

The fourth proportional to 12,041.90, 18,053.13 and 11,069.90 is: 16,595.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.90 : 18,053.13 = 11,069.90 : x
  2. Step 2: Convert to fraction form
    12,041.90/18,053.13 = 11,069.90/x
  3. Step 3: Cross multiply
    12,041.90x = 18,053.13 × 11,069.90
  4. Step 4: Simplify right side
    12,041.90x = 199,846,343.79
  5. Step 5: Solve for x
    x = 199,846,343.79/12,041.90
  6. Step 6: Final answer
    x = 16,595.91

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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.