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Finding the Fourth Proportional to 4,742.76, 7,066.71 and 4,225.44

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Solution

The fourth proportional to 4,742.76, 7,066.71 and 4,225.44 is: 6,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.76 : 7,066.71 = 4,225.44 : x
  2. Step 2: Convert to fraction form
    4,742.76/7,066.71 = 4,225.44/x
  3. Step 3: Cross multiply
    4,742.76x = 7,066.71 × 4,225.44
  4. Step 4: Simplify right side
    4,742.76x = 29,859,959.10
  5. Step 5: Solve for x
    x = 29,859,959.10/4,742.76
  6. Step 6: Final answer
    x = 6,295.90

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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.