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Finding the Fourth Proportional to 35,060.40, 52,590.60 and 21,236.40

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Solution

The fourth proportional to 35,060.40, 52,590.60 and 21,236.40 is: 31,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,060.40 : 52,590.60 = 21,236.40 : x
  2. Step 2: Convert to fraction form
    35,060.40/52,590.60 = 21,236.40/x
  3. Step 3: Cross multiply
    35,060.40x = 52,590.60 × 21,236.40
  4. Step 4: Simplify right side
    35,060.40x = 1,116,835,017.84
  5. Step 5: Solve for x
    x = 1,116,835,017.84/35,060.40
  6. Step 6: Final answer
    x = 31,854.60

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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.