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Finding the Fourth Proportional to 11,525.01, 15,906.06 and 6,490.23

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Solution

The fourth proportional to 11,525.01, 15,906.06 and 6,490.23 is: 8,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.01 : 15,906.06 = 6,490.23 : x
  2. Step 2: Convert to fraction form
    11,525.01/15,906.06 = 6,490.23/x
  3. Step 3: Cross multiply
    11,525.01x = 15,906.06 × 6,490.23
  4. Step 4: Simplify right side
    11,525.01x = 103,233,987.79
  5. Step 5: Solve for x
    x = 103,233,987.79/11,525.01
  6. Step 6: Final answer
    x = 8,957.39

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Half scale
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Double 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.