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Finding the Fourth Proportional to 27,240.76, 40,860.03 and 7,518.81

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Solution

The fourth proportional to 27,240.76, 40,860.03 and 7,518.81 is: 11,277.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,240.76 : 40,860.03 = 7,518.81 : x
  2. Step 2: Convert to fraction form
    27,240.76/40,860.03 = 7,518.81/x
  3. Step 3: Cross multiply
    27,240.76x = 40,860.03 × 7,518.81
  4. Step 4: Simplify right side
    27,240.76x = 307,218,802.16
  5. Step 5: Solve for x
    x = 307,218,802.16/27,240.76
  6. Step 6: Final answer
    x = 11,277.91

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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.