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Finding the Fourth Proportional to 17,188.61, 25,801.34 and 14,445.54

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Solution

The fourth proportional to 17,188.61, 25,801.34 and 14,445.54 is: 21,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.61 : 25,801.34 = 14,445.54 : x
  2. Step 2: Convert to fraction form
    17,188.61/25,801.34 = 14,445.54/x
  3. Step 3: Cross multiply
    17,188.61x = 25,801.34 × 14,445.54
  4. Step 4: Simplify right side
    17,188.61x = 372,714,216.80
  5. Step 5: Solve for x
    x = 372,714,216.80/17,188.61
  6. Step 6: Final answer
    x = 21,683.80

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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.