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Finding the Fourth Proportional to 18,007.30, 27,010.98 and 4,859.68

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Solution

The fourth proportional to 18,007.30, 27,010.98 and 4,859.68 is: 7,289.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.30 : 27,010.98 = 4,859.68 : x
  2. Step 2: Convert to fraction form
    18,007.30/27,010.98 = 4,859.68/x
  3. Step 3: Cross multiply
    18,007.30x = 27,010.98 × 4,859.68
  4. Step 4: Simplify right side
    18,007.30x = 131,264,719.29
  5. Step 5: Solve for x
    x = 131,264,719.29/18,007.30
  6. Step 6: Final answer
    x = 7,289.53

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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.