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Finding the Fourth Proportional to 7,881.17, 10,875.88 and 4,344.71

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Solution

The fourth proportional to 7,881.17, 10,875.88 and 4,344.71 is: 5,995.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.17 : 10,875.88 = 4,344.71 : x
  2. Step 2: Convert to fraction form
    7,881.17/10,875.88 = 4,344.71/x
  3. Step 3: Cross multiply
    7,881.17x = 10,875.88 × 4,344.71
  4. Step 4: Simplify right side
    7,881.17x = 47,252,544.59
  5. Step 5: Solve for x
    x = 47,252,544.59/7,881.17
  6. Step 6: Final answer
    x = 5,995.63

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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.