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Finding the Fourth Proportional to 8,710.93, 12,022.05 and 5,525.20

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Solution

The fourth proportional to 8,710.93, 12,022.05 and 5,525.20 is: 7,625.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.93 : 12,022.05 = 5,525.20 : x
  2. Step 2: Convert to fraction form
    8,710.93/12,022.05 = 5,525.20/x
  3. Step 3: Cross multiply
    8,710.93x = 12,022.05 × 5,525.20
  4. Step 4: Simplify right side
    8,710.93x = 66,424,230.66
  5. Step 5: Solve for x
    x = 66,424,230.66/8,710.93
  6. Step 6: Final answer
    x = 7,625.39

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Half scale
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Double scale
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Similar ratio
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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.