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Finding the Fourth Proportional to 35,881.86, 49,512.51 and 19,965.18

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Solution

The fourth proportional to 35,881.86, 49,512.51 and 19,965.18 is: 27,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,881.86 : 49,512.51 = 19,965.18 : x
  2. Step 2: Convert to fraction form
    35,881.86/49,512.51 = 19,965.18/x
  3. Step 3: Cross multiply
    35,881.86x = 49,512.51 × 19,965.18
  4. Step 4: Simplify right side
    35,881.86x = 988,526,174.40
  5. Step 5: Solve for x
    x = 988,526,174.40/35,881.86
  6. Step 6: Final answer
    x = 27,549.47

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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.