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Finding the Fourth Proportional to 6,444.32, 8,873.39 and 5,643.06

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Solution

The fourth proportional to 6,444.32, 8,873.39 and 5,643.06 is: 7,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,444.32 : 8,873.39 = 5,643.06 : x
  2. Step 2: Convert to fraction form
    6,444.32/8,873.39 = 5,643.06/x
  3. Step 3: Cross multiply
    6,444.32x = 8,873.39 × 5,643.06
  4. Step 4: Simplify right side
    6,444.32x = 50,073,072.17
  5. Step 5: Solve for x
    x = 50,073,072.17/6,444.32
  6. Step 6: Final answer
    x = 7,770.11

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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.