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Finding the Fourth Proportional to 7,002.39, 9,662.58 and 4,017.99

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Solution

The fourth proportional to 7,002.39, 9,662.58 and 4,017.99 is: 5,544.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.39 : 9,662.58 = 4,017.99 : x
  2. Step 2: Convert to fraction form
    7,002.39/9,662.58 = 4,017.99/x
  3. Step 3: Cross multiply
    7,002.39x = 9,662.58 × 4,017.99
  4. Step 4: Simplify right side
    7,002.39x = 38,824,149.81
  5. Step 5: Solve for x
    x = 38,824,149.81/7,002.39
  6. Step 6: Final answer
    x = 5,544.41

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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.