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Finding the Fourth Proportional to 13,235.61, 18,265.02 and 7,267.53

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Solution

The fourth proportional to 13,235.61, 18,265.02 and 7,267.53 is: 10,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.61 : 18,265.02 = 7,267.53 : x
  2. Step 2: Convert to fraction form
    13,235.61/18,265.02 = 7,267.53/x
  3. Step 3: Cross multiply
    13,235.61x = 18,265.02 × 7,267.53
  4. Step 4: Simplify right side
    13,235.61x = 132,741,580.80
  5. Step 5: Solve for x
    x = 132,741,580.80/13,235.61
  6. Step 6: Final answer
    x = 10,029.12

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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.