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Finding the Fourth Proportional to 7,891.22, 10,880.03 and 5,053.93

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Solution

The fourth proportional to 7,891.22, 10,880.03 and 5,053.93 is: 6,968.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.22 : 10,880.03 = 5,053.93 : x
  2. Step 2: Convert to fraction form
    7,891.22/10,880.03 = 5,053.93/x
  3. Step 3: Cross multiply
    7,891.22x = 10,880.03 × 5,053.93
  4. Step 4: Simplify right side
    7,891.22x = 54,986,895.45
  5. Step 5: Solve for x
    x = 54,986,895.45/7,891.22
  6. Step 6: Final answer
    x = 6,968.11

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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.