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Finding the Fourth Proportional to 7,966.56, 12,008.40 and 7,300.92

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Solution

The fourth proportional to 7,966.56, 12,008.40 and 7,300.92 is: 11,005.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.56 : 12,008.40 = 7,300.92 : x
  2. Step 2: Convert to fraction form
    7,966.56/12,008.40 = 7,300.92/x
  3. Step 3: Cross multiply
    7,966.56x = 12,008.40 × 7,300.92
  4. Step 4: Simplify right side
    7,966.56x = 87,672,367.73
  5. Step 5: Solve for x
    x = 87,672,367.73/7,966.56
  6. Step 6: Final answer
    x = 11,005.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.