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Finding the Fourth Proportional to 6,323.95, 8,721.80 and 4,749.31

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Solution

The fourth proportional to 6,323.95, 8,721.80 and 4,749.31 is: 6,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,323.95 : 8,721.80 = 4,749.31 : x
  2. Step 2: Convert to fraction form
    6,323.95/8,721.80 = 4,749.31/x
  3. Step 3: Cross multiply
    6,323.95x = 8,721.80 × 4,749.31
  4. Step 4: Simplify right side
    6,323.95x = 41,422,531.96
  5. Step 5: Solve for x
    x = 41,422,531.96/6,323.95
  6. Step 6: Final answer
    x = 6,550.10

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1.5x scale

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.