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Finding the Fourth Proportional to 36,543.88, 50,428.02 and 21,637

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Solution

The fourth proportional to 36,543.88, 50,428.02 and 21,637 is: 29,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,543.88 : 50,428.02 = 21,637 : x
  2. Step 2: Convert to fraction form
    36,543.88/50,428.02 = 21,637/x
  3. Step 3: Cross multiply
    36,543.88x = 50,428.02 × 21,637
  4. Step 4: Simplify right side
    36,543.88x = 1,091,111,068.74
  5. Step 5: Solve for x
    x = 1,091,111,068.74/36,543.88
  6. Step 6: Final answer
    x = 29,857.56

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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.