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Finding the Fourth Proportional to 7,937.99, 10,932.26 and 7,765.76

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Solution

The fourth proportional to 7,937.99, 10,932.26 and 7,765.76 is: 10,695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.99 : 10,932.26 = 7,765.76 : x
  2. Step 2: Convert to fraction form
    7,937.99/10,932.26 = 7,765.76/x
  3. Step 3: Cross multiply
    7,937.99x = 10,932.26 × 7,765.76
  4. Step 4: Simplify right side
    7,937.99x = 84,897,307.42
  5. Step 5: Solve for x
    x = 84,897,307.42/7,937.99
  6. Step 6: Final answer
    x = 10,695.06

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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.