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Finding the Fourth Proportional to 60,969.75, 91,483.77 and 21,545.43

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Solution

The fourth proportional to 60,969.75, 91,483.77 and 21,545.43 is: 32,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,969.75 : 91,483.77 = 21,545.43 : x
  2. Step 2: Convert to fraction form
    60,969.75/91,483.77 = 21,545.43/x
  3. Step 3: Cross multiply
    60,969.75x = 91,483.77 × 21,545.43
  4. Step 4: Simplify right side
    60,969.75x = 1,971,057,162.67
  5. Step 5: Solve for x
    x = 1,971,057,162.67/60,969.75
  6. Step 6: Final answer
    x = 32,328.44

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1.5x scale

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.