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Finding the Fourth Proportional to 3,051.92, 4,577.48 and 972.12

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Solution

The fourth proportional to 3,051.92, 4,577.48 and 972.12 is: 1,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.92 : 4,577.48 = 972.12 : x
  2. Step 2: Convert to fraction form
    3,051.92/4,577.48 = 972.12/x
  3. Step 3: Cross multiply
    3,051.92x = 4,577.48 × 972.12
  4. Step 4: Simplify right side
    3,051.92x = 4,449,859.86
  5. Step 5: Solve for x
    x = 4,449,859.86/3,051.92
  6. Step 6: Final answer
    x = 1,458.05

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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.