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Finding the Fourth Proportional to 7,248.62, 10,000.74 and 4,104.20

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Solution

The fourth proportional to 7,248.62, 10,000.74 and 4,104.20 is: 5,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248.62 : 10,000.74 = 4,104.20 : x
  2. Step 2: Convert to fraction form
    7,248.62/10,000.74 = 4,104.20/x
  3. Step 3: Cross multiply
    7,248.62x = 10,000.74 × 4,104.20
  4. Step 4: Simplify right side
    7,248.62x = 41,045,037.11
  5. Step 5: Solve for x
    x = 41,045,037.11/7,248.62
  6. Step 6: Final answer
    x = 5,662.46

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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.