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Finding the Fourth Proportional to 6,378.32, 8,796.80 and 4,496.16

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Solution

The fourth proportional to 6,378.32, 8,796.80 and 4,496.16 is: 6,200.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.32 : 8,796.80 = 4,496.16 : x
  2. Step 2: Convert to fraction form
    6,378.32/8,796.80 = 4,496.16/x
  3. Step 3: Cross multiply
    6,378.32x = 8,796.80 × 4,496.16
  4. Step 4: Simplify right side
    6,378.32x = 39,551,820.29
  5. Step 5: Solve for x
    x = 39,551,820.29/6,378.32
  6. Step 6: Final answer
    x = 6,200.98

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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.