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Finding the Fourth Proportional to 4,964.76, 7,448.76 and 1,678.32

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Solution

The fourth proportional to 4,964.76, 7,448.76 and 1,678.32 is: 2,518.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,964.76 : 7,448.76 = 1,678.32 : x
  2. Step 2: Convert to fraction form
    4,964.76/7,448.76 = 1,678.32/x
  3. Step 3: Cross multiply
    4,964.76x = 7,448.76 × 1,678.32
  4. Step 4: Simplify right side
    4,964.76x = 12,501,402.88
  5. Step 5: Solve for x
    x = 12,501,402.88/4,964.76
  6. Step 6: Final answer
    x = 2,518.03

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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.