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Finding the Fourth Proportional to 7,008.40, 9,671.23 and 4,355.75

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Solution

The fourth proportional to 7,008.40, 9,671.23 and 4,355.75 is: 6,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.40 : 9,671.23 = 4,355.75 : x
  2. Step 2: Convert to fraction form
    7,008.40/9,671.23 = 4,355.75/x
  3. Step 3: Cross multiply
    7,008.40x = 9,671.23 × 4,355.75
  4. Step 4: Simplify right side
    7,008.40x = 42,125,438.29
  5. Step 5: Solve for x
    x = 42,125,438.29/7,008.40
  6. Step 6: Final answer
    x = 6,010.71

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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.