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Finding the Fourth Proportional to 6,940.72, 9,582.36 and 4,291.68

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Solution

The fourth proportional to 6,940.72, 9,582.36 and 4,291.68 is: 5,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.72 : 9,582.36 = 4,291.68 : x
  2. Step 2: Convert to fraction form
    6,940.72/9,582.36 = 4,291.68/x
  3. Step 3: Cross multiply
    6,940.72x = 9,582.36 × 4,291.68
  4. Step 4: Simplify right side
    6,940.72x = 41,124,422.76
  5. Step 5: Solve for x
    x = 41,124,422.76/6,940.72
  6. Step 6: Final answer
    x = 5,925.09

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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.