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Finding the Fourth Proportional to 38,055, 52,515.90 and 21,291.24

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Solution

The fourth proportional to 38,055, 52,515.90 and 21,291.24 is: 29,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,055 : 52,515.90 = 21,291.24 : x
  2. Step 2: Convert to fraction form
    38,055/52,515.90 = 21,291.24/x
  3. Step 3: Cross multiply
    38,055x = 52,515.90 × 21,291.24
  4. Step 4: Simplify right side
    38,055x = 1,118,128,630.72
  5. Step 5: Solve for x
    x = 1,118,128,630.72/38,055
  6. Step 6: Final answer
    x = 29,381.91

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Find fourth proportional to 38,056, 52,517.28 and 21,292.24
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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.