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Finding the Fourth Proportional to 40,393.34, 55,752 and 26,221.58

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Solution

The fourth proportional to 40,393.34, 55,752 and 26,221.58 is: 36,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,393.34 : 55,752 = 26,221.58 : x
  2. Step 2: Convert to fraction form
    40,393.34/55,752 = 26,221.58/x
  3. Step 3: Cross multiply
    40,393.34x = 55,752 × 26,221.58
  4. Step 4: Simplify right side
    40,393.34x = 1,461,905,528.16
  5. Step 5: Solve for x
    x = 1,461,905,528.16/40,393.34
  6. Step 6: Final answer
    x = 36,191.75

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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.