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Finding the Fourth Proportional to 13,235.84, 18,265.48 and 7,267.89

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Solution

The fourth proportional to 13,235.84, 18,265.48 and 7,267.89 is: 10,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.84 : 18,265.48 = 7,267.89 : x
  2. Step 2: Convert to fraction form
    13,235.84/18,265.48 = 7,267.89/x
  3. Step 3: Cross multiply
    13,235.84x = 18,265.48 × 7,267.89
  4. Step 4: Simplify right side
    13,235.84x = 132,751,549.76
  5. Step 5: Solve for x
    x = 132,751,549.76/13,235.84
  6. Step 6: Final answer
    x = 10,029.70

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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.