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Finding the Fourth Proportional to 6,349.50, 8,762.40 and 4,859.10

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Solution

The fourth proportional to 6,349.50, 8,762.40 and 4,859.10 is: 6,705.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.50 : 8,762.40 = 4,859.10 : x
  2. Step 2: Convert to fraction form
    6,349.50/8,762.40 = 4,859.10/x
  3. Step 3: Cross multiply
    6,349.50x = 8,762.40 × 4,859.10
  4. Step 4: Simplify right side
    6,349.50x = 42,577,377.84
  5. Step 5: Solve for x
    x = 42,577,377.84/6,349.50
  6. Step 6: Final answer
    x = 6,705.63

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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.