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Finding the Fourth Proportional to 6,368.40, 9,534 and 4,732.20

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Solution

The fourth proportional to 6,368.40, 9,534 and 4,732.20 is: 7,084.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.40 : 9,534 = 4,732.20 : x
  2. Step 2: Convert to fraction form
    6,368.40/9,534 = 4,732.20/x
  3. Step 3: Cross multiply
    6,368.40x = 9,534 × 4,732.20
  4. Step 4: Simplify right side
    6,368.40x = 45,116,794.80
  5. Step 5: Solve for x
    x = 45,116,794.80/6,368.40
  6. Step 6: Final answer
    x = 7,084.48

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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.