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Finding the Fourth Proportional to 7,956.68, 10,971.54 and 4,971.48

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Solution

The fourth proportional to 7,956.68, 10,971.54 and 4,971.48 is: 6,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.68 : 10,971.54 = 4,971.48 : x
  2. Step 2: Convert to fraction form
    7,956.68/10,971.54 = 4,971.48/x
  3. Step 3: Cross multiply
    7,956.68x = 10,971.54 × 4,971.48
  4. Step 4: Simplify right side
    7,956.68x = 54,544,791.68
  5. Step 5: Solve for x
    x = 54,544,791.68/7,956.68
  6. Step 6: Final answer
    x = 6,855.22

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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.