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Finding the Fourth Proportional to 7,256.61, 10,884.51 and 2,874.51

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Solution

The fourth proportional to 7,256.61, 10,884.51 and 2,874.51 is: 4,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.61 : 10,884.51 = 2,874.51 : x
  2. Step 2: Convert to fraction form
    7,256.61/10,884.51 = 2,874.51/x
  3. Step 3: Cross multiply
    7,256.61x = 10,884.51 × 2,874.51
  4. Step 4: Simplify right side
    7,256.61x = 31,287,618.47
  5. Step 5: Solve for x
    x = 31,287,618.47/7,256.61
  6. Step 6: Final answer
    x = 4,311.60

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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.