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Finding the Fourth Proportional to 7,051.14, 9,721.20 and 5,851.62

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Solution

The fourth proportional to 7,051.14, 9,721.20 and 5,851.62 is: 8,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.14 : 9,721.20 = 5,851.62 : x
  2. Step 2: Convert to fraction form
    7,051.14/9,721.20 = 5,851.62/x
  3. Step 3: Cross multiply
    7,051.14x = 9,721.20 × 5,851.62
  4. Step 4: Simplify right side
    7,051.14x = 56,884,768.34
  5. Step 5: Solve for x
    x = 56,884,768.34/7,051.14
  6. Step 6: Final answer
    x = 8,067.46

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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.