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Finding the Fourth Proportional to 7,891.12, 10,810.76 and 7,595.68

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Solution

The fourth proportional to 7,891.12, 10,810.76 and 7,595.68 is: 10,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.12 : 10,810.76 = 7,595.68 : x
  2. Step 2: Convert to fraction form
    7,891.12/10,810.76 = 7,595.68/x
  3. Step 3: Cross multiply
    7,891.12x = 10,810.76 × 7,595.68
  4. Step 4: Simplify right side
    7,891.12x = 82,115,073.52
  5. Step 5: Solve for x
    x = 82,115,073.52/7,891.12
  6. Step 6: Final answer
    x = 10,406.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.