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Finding the Fourth Proportional to 7,277.41, 10,918.13 and 2,897.94

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Solution

The fourth proportional to 7,277.41, 10,918.13 and 2,897.94 is: 4,347.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,277.41 : 10,918.13 = 2,897.94 : x
  2. Step 2: Convert to fraction form
    7,277.41/10,918.13 = 2,897.94/x
  3. Step 3: Cross multiply
    7,277.41x = 10,918.13 × 2,897.94
  4. Step 4: Simplify right side
    7,277.41x = 31,640,085.65
  5. Step 5: Solve for x
    x = 31,640,085.65/7,277.41
  6. Step 6: Final answer
    x = 4,347.71

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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.