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Finding the Fourth Proportional to 7,792.98, 10,754.28 and 4,256.21

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Solution

The fourth proportional to 7,792.98, 10,754.28 and 4,256.21 is: 5,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,792.98 : 10,754.28 = 4,256.21 : x
  2. Step 2: Convert to fraction form
    7,792.98/10,754.28 = 4,256.21/x
  3. Step 3: Cross multiply
    7,792.98x = 10,754.28 × 4,256.21
  4. Step 4: Simplify right side
    7,792.98x = 45,772,420.31
  5. Step 5: Solve for x
    x = 45,772,420.31/7,792.98
  6. Step 6: Final answer
    x = 5,873.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.