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Finding the Fourth Proportional to 21,602.27, 32,398.54 and 7,751.27

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Solution

The fourth proportional to 21,602.27, 32,398.54 and 7,751.27 is: 11,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.27 : 32,398.54 = 7,751.27 : x
  2. Step 2: Convert to fraction form
    21,602.27/32,398.54 = 7,751.27/x
  3. Step 3: Cross multiply
    21,602.27x = 32,398.54 × 7,751.27
  4. Step 4: Simplify right side
    21,602.27x = 251,129,831.15
  5. Step 5: Solve for x
    x = 251,129,831.15/21,602.27
  6. Step 6: Final answer
    x = 11,625.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.