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Finding the Fourth Proportional to 26,554.50, 36,646.97 and 15,376.50

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Solution

The fourth proportional to 26,554.50, 36,646.97 and 15,376.50 is: 21,220.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,554.50 : 36,646.97 = 15,376.50 : x
  2. Step 2: Convert to fraction form
    26,554.50/36,646.97 = 15,376.50/x
  3. Step 3: Cross multiply
    26,554.50x = 36,646.97 × 15,376.50
  4. Step 4: Simplify right side
    26,554.50x = 563,502,057.32
  5. Step 5: Solve for x
    x = 563,502,057.32/26,554.50
  6. Step 6: Final answer
    x = 21,220.59

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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.