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Finding the Fourth Proportional to 18,918, 26,107.02 and 10,534.68

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Solution

The fourth proportional to 18,918, 26,107.02 and 10,534.68 is: 14,537.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918 : 26,107.02 = 10,534.68 : x
  2. Step 2: Convert to fraction form
    18,918/26,107.02 = 10,534.68/x
  3. Step 3: Cross multiply
    18,918x = 26,107.02 × 10,534.68
  4. Step 4: Simplify right side
    18,918x = 275,029,101.45
  5. Step 5: Solve for x
    x = 275,029,101.45/18,918
  6. Step 6: Final answer
    x = 14,537.96

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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.