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Finding the Fourth Proportional to 9,396.58, 12,953.48 and 7,154.56

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Solution

The fourth proportional to 9,396.58, 12,953.48 and 7,154.56 is: 9,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,396.58 : 12,953.48 = 7,154.56 : x
  2. Step 2: Convert to fraction form
    9,396.58/12,953.48 = 7,154.56/x
  3. Step 3: Cross multiply
    9,396.58x = 12,953.48 × 7,154.56
  4. Step 4: Simplify right side
    9,396.58x = 92,676,449.87
  5. Step 5: Solve for x
    x = 92,676,449.87/9,396.58
  6. Step 6: Final answer
    x = 9,862.79

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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.