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Finding the Fourth Proportional to 7,556.98, 10,424.43 and 7,022.45

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Solution

The fourth proportional to 7,556.98, 10,424.43 and 7,022.45 is: 9,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,556.98 : 10,424.43 = 7,022.45 : x
  2. Step 2: Convert to fraction form
    7,556.98/10,424.43 = 7,022.45/x
  3. Step 3: Cross multiply
    7,556.98x = 10,424.43 × 7,022.45
  4. Step 4: Simplify right side
    7,556.98x = 73,205,038.45
  5. Step 5: Solve for x
    x = 73,205,038.45/7,556.98
  6. Step 6: Final answer
    x = 9,687.08

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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.