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Finding the Fourth Proportional to 7,245.84, 10,869.96 and 2,316.72

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Solution

The fourth proportional to 7,245.84, 10,869.96 and 2,316.72 is: 3,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.84 : 10,869.96 = 2,316.72 : x
  2. Step 2: Convert to fraction form
    7,245.84/10,869.96 = 2,316.72/x
  3. Step 3: Cross multiply
    7,245.84x = 10,869.96 × 2,316.72
  4. Step 4: Simplify right side
    7,245.84x = 25,182,653.73
  5. Step 5: Solve for x
    x = 25,182,653.73/7,245.84
  6. Step 6: Final answer
    x = 3,475.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.