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Finding the Fourth Proportional to 7,476, 10,316.88 and 4,333.20

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Solution

The fourth proportional to 7,476, 10,316.88 and 4,333.20 is: 5,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,476 : 10,316.88 = 4,333.20 : x
  2. Step 2: Convert to fraction form
    7,476/10,316.88 = 4,333.20/x
  3. Step 3: Cross multiply
    7,476x = 10,316.88 × 4,333.20
  4. Step 4: Simplify right side
    7,476x = 44,705,104.42
  5. Step 5: Solve for x
    x = 44,705,104.42/7,476
  6. Step 6: Final answer
    x = 5,979.82

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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.