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Finding the Fourth Proportional to 60,701.99, 91,063.91 and 18,581.28

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Solution

The fourth proportional to 60,701.99, 91,063.91 and 18,581.28 is: 27,875.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,701.99 : 91,063.91 = 18,581.28 : x
  2. Step 2: Convert to fraction form
    60,701.99/91,063.91 = 18,581.28/x
  3. Step 3: Cross multiply
    60,701.99x = 91,063.91 × 18,581.28
  4. Step 4: Simplify right side
    60,701.99x = 1,692,083,916.70
  5. Step 5: Solve for x
    x = 1,692,083,916.70/60,701.99
  6. Step 6: Final answer
    x = 27,875.26

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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.