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Finding the Fourth Proportional to 6,602.80, 9,913.80 and 4,663.60

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Solution

The fourth proportional to 6,602.80, 9,913.80 and 4,663.60 is: 7,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,602.80 : 9,913.80 = 4,663.60 : x
  2. Step 2: Convert to fraction form
    6,602.80/9,913.80 = 4,663.60/x
  3. Step 3: Cross multiply
    6,602.80x = 9,913.80 × 4,663.60
  4. Step 4: Simplify right side
    6,602.80x = 46,233,997.68
  5. Step 5: Solve for x
    x = 46,233,997.68/6,602.80
  6. Step 6: Final answer
    x = 7,002.18

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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.