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Finding the Fourth Proportional to 4,776, 6,577.20 and 4,674.24

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Solution

The fourth proportional to 4,776, 6,577.20 and 4,674.24 is: 6,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,776 : 6,577.20 = 4,674.24 : x
  2. Step 2: Convert to fraction form
    4,776/6,577.20 = 4,674.24/x
  3. Step 3: Cross multiply
    4,776x = 6,577.20 × 4,674.24
  4. Step 4: Simplify right side
    4,776x = 30,743,411.33
  5. Step 5: Solve for x
    x = 30,743,411.33/4,776
  6. Step 6: Final answer
    x = 6,437.06

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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.