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Finding the Fourth Proportional to 35,697.70, 53,546.55 and 14,921.20

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Solution

The fourth proportional to 35,697.70, 53,546.55 and 14,921.20 is: 22,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,697.70 : 53,546.55 = 14,921.20 : x
  2. Step 2: Convert to fraction form
    35,697.70/53,546.55 = 14,921.20/x
  3. Step 3: Cross multiply
    35,697.70x = 53,546.55 × 14,921.20
  4. Step 4: Simplify right side
    35,697.70x = 798,978,781.86
  5. Step 5: Solve for x
    x = 798,978,781.86/35,697.70
  6. Step 6: Final answer
    x = 22,381.80

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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.