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Finding the Fourth Proportional to 13,053.96, 18,007.67 and 8,019.30

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Solution

The fourth proportional to 13,053.96, 18,007.67 and 8,019.30 is: 11,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.96 : 18,007.67 = 8,019.30 : x
  2. Step 2: Convert to fraction form
    13,053.96/18,007.67 = 8,019.30/x
  3. Step 3: Cross multiply
    13,053.96x = 18,007.67 × 8,019.30
  4. Step 4: Simplify right side
    13,053.96x = 144,408,950.50
  5. Step 5: Solve for x
    x = 144,408,950.50/13,053.96
  6. Step 6: Final answer
    x = 11,062.46

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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.