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Finding the Fourth Proportional to 5,362.78, 8,007.47 and 4,803.88

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Solution

The fourth proportional to 5,362.78, 8,007.47 and 4,803.88 is: 7,172.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.78 : 8,007.47 = 4,803.88 : x
  2. Step 2: Convert to fraction form
    5,362.78/8,007.47 = 4,803.88/x
  3. Step 3: Cross multiply
    5,362.78x = 8,007.47 × 4,803.88
  4. Step 4: Simplify right side
    5,362.78x = 38,466,924.98
  5. Step 5: Solve for x
    x = 38,466,924.98/5,362.78
  6. Step 6: Final answer
    x = 7,172.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.