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Finding the Fourth Proportional to 6,571.78, 9,053.64 and 4,578.72

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Solution

The fourth proportional to 6,571.78, 9,053.64 and 4,578.72 is: 6,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,571.78 : 9,053.64 = 4,578.72 : x
  2. Step 2: Convert to fraction form
    6,571.78/9,053.64 = 4,578.72/x
  3. Step 3: Cross multiply
    6,571.78x = 9,053.64 × 4,578.72
  4. Step 4: Simplify right side
    6,571.78x = 41,454,082.54
  5. Step 5: Solve for x
    x = 41,454,082.54/6,571.78
  6. Step 6: Final answer
    x = 6,307.89

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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.