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Finding the Fourth Proportional to 7,329.94, 10,994.86 and 2,648.18

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Solution

The fourth proportional to 7,329.94, 10,994.86 and 2,648.18 is: 3,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.94 : 10,994.86 = 2,648.18 : x
  2. Step 2: Convert to fraction form
    7,329.94/10,994.86 = 2,648.18/x
  3. Step 3: Cross multiply
    7,329.94x = 10,994.86 × 2,648.18
  4. Step 4: Simplify right side
    7,329.94x = 29,116,368.35
  5. Step 5: Solve for x
    x = 29,116,368.35/7,329.94
  6. Step 6: Final answer
    x = 3,972.25

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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.