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Finding the Fourth Proportional to 6,602.70, 9,904.55 and 2,220.15

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Solution

The fourth proportional to 6,602.70, 9,904.55 and 2,220.15 is: 3,330.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.70 : 9,904.55 = 2,220.15 : x
  2. Step 2: Convert to fraction form
    6,602.70/9,904.55 = 2,220.15/x
  3. Step 3: Cross multiply
    6,602.70x = 9,904.55 × 2,220.15
  4. Step 4: Simplify right side
    6,602.70x = 21,989,575.58
  5. Step 5: Solve for x
    x = 21,989,575.58/6,602.70
  6. Step 6: Final answer
    x = 3,330.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.