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Finding the Fourth Proportional to 7,572.64, 10,449.04 and 4,260

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Solution

The fourth proportional to 7,572.64, 10,449.04 and 4,260 is: 5,878.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.64 : 10,449.04 = 4,260 : x
  2. Step 2: Convert to fraction form
    7,572.64/10,449.04 = 4,260/x
  3. Step 3: Cross multiply
    7,572.64x = 10,449.04 × 4,260
  4. Step 4: Simplify right side
    7,572.64x = 44,512,910.40
  5. Step 5: Solve for x
    x = 44,512,910.40/7,572.64
  6. Step 6: Final answer
    x = 5,878.12

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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.