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Finding the Fourth Proportional to 27,008.51, 40,518.75 and 10,368.54

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Solution

The fourth proportional to 27,008.51, 40,518.75 and 10,368.54 is: 15,555.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,008.51 : 40,518.75 = 10,368.54 : x
  2. Step 2: Convert to fraction form
    27,008.51/40,518.75 = 10,368.54/x
  3. Step 3: Cross multiply
    27,008.51x = 40,518.75 × 10,368.54
  4. Step 4: Simplify right side
    27,008.51x = 420,120,470.95
  5. Step 5: Solve for x
    x = 420,120,470.95/27,008.51
  6. Step 6: Final answer
    x = 15,555.12

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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.