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Finding the Fourth Proportional to 35,765.40, 53,648.10 and 21,922.20

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Solution

The fourth proportional to 35,765.40, 53,648.10 and 21,922.20 is: 32,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,765.40 : 53,648.10 = 21,922.20 : x
  2. Step 2: Convert to fraction form
    35,765.40/53,648.10 = 21,922.20/x
  3. Step 3: Cross multiply
    35,765.40x = 53,648.10 × 21,922.20
  4. Step 4: Simplify right side
    35,765.40x = 1,176,084,377.82
  5. Step 5: Solve for x
    x = 1,176,084,377.82/35,765.40
  6. Step 6: Final answer
    x = 32,883.30

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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.