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Finding the Fourth Proportional to 7,214.74, 9,949.44 and 4,382.58

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Solution

The fourth proportional to 7,214.74, 9,949.44 and 4,382.58 is: 6,043.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.74 : 9,949.44 = 4,382.58 : x
  2. Step 2: Convert to fraction form
    7,214.74/9,949.44 = 4,382.58/x
  3. Step 3: Cross multiply
    7,214.74x = 9,949.44 × 4,382.58
  4. Step 4: Simplify right side
    7,214.74x = 43,604,216.76
  5. Step 5: Solve for x
    x = 43,604,216.76/7,214.74
  6. Step 6: Final answer
    x = 6,043.77

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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.