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Finding the Fourth Proportional to 6,556.17, 9,051.20 and 5,020.20

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Solution

The fourth proportional to 6,556.17, 9,051.20 and 5,020.20 is: 6,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,556.17 : 9,051.20 = 5,020.20 : x
  2. Step 2: Convert to fraction form
    6,556.17/9,051.20 = 5,020.20/x
  3. Step 3: Cross multiply
    6,556.17x = 9,051.20 × 5,020.20
  4. Step 4: Simplify right side
    6,556.17x = 45,438,809.14
  5. Step 5: Solve for x
    x = 45,438,809.14/6,556.17
  6. Step 6: Final answer
    x = 6,930.69

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Half scale
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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.