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Finding the Fourth Proportional to 7,007.81, 9,671.18 and 4,023.98

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Solution

The fourth proportional to 7,007.81, 9,671.18 and 4,023.98 is: 5,553.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.81 : 9,671.18 = 4,023.98 : x
  2. Step 2: Convert to fraction form
    7,007.81/9,671.18 = 4,023.98/x
  3. Step 3: Cross multiply
    7,007.81x = 9,671.18 × 4,023.98
  4. Step 4: Simplify right side
    7,007.81x = 38,916,586.54
  5. Step 5: Solve for x
    x = 38,916,586.54/7,007.81
  6. Step 6: Final answer
    x = 5,553.32

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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.