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Finding the Fourth Proportional to 6,602.91, 9,112.01 and 3,618.87

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Solution

The fourth proportional to 6,602.91, 9,112.01 and 3,618.87 is: 4,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.91 : 9,112.01 = 3,618.87 : x
  2. Step 2: Convert to fraction form
    6,602.91/9,112.01 = 3,618.87/x
  3. Step 3: Cross multiply
    6,602.91x = 9,112.01 × 3,618.87
  4. Step 4: Simplify right side
    6,602.91x = 32,975,161.53
  5. Step 5: Solve for x
    x = 32,975,161.53/6,602.91
  6. Step 6: Final answer
    x = 4,994.03

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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.