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Finding the Fourth Proportional to 7,008.53, 9,671.70 and 3,821.88

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Solution

The fourth proportional to 7,008.53, 9,671.70 and 3,821.88 is: 5,274.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.53 : 9,671.70 = 3,821.88 : x
  2. Step 2: Convert to fraction form
    7,008.53/9,671.70 = 3,821.88/x
  3. Step 3: Cross multiply
    7,008.53x = 9,671.70 × 3,821.88
  4. Step 4: Simplify right side
    7,008.53x = 36,964,127.40
  5. Step 5: Solve for x
    x = 36,964,127.40/7,008.53
  6. Step 6: Final answer
    x = 5,274.17

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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.