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Finding the Fourth Proportional to 66,237.70, 91,408.80 and 36,023.13

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Solution

The fourth proportional to 66,237.70, 91,408.80 and 36,023.13 is: 49,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,237.70 : 91,408.80 = 36,023.13 : x
  2. Step 2: Convert to fraction form
    66,237.70/91,408.80 = 36,023.13/x
  3. Step 3: Cross multiply
    66,237.70x = 91,408.80 × 36,023.13
  4. Step 4: Simplify right side
    66,237.70x = 3,292,831,220.63
  5. Step 5: Solve for x
    x = 3,292,831,220.63/66,237.70
  6. Step 6: Final answer
    x = 49,712.34

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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.