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Finding the Fourth Proportional to 28,803.68, 39,751.38 and 16,061

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Solution

The fourth proportional to 28,803.68, 39,751.38 and 16,061 is: 22,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,803.68 : 39,751.38 = 16,061 : x
  2. Step 2: Convert to fraction form
    28,803.68/39,751.38 = 16,061/x
  3. Step 3: Cross multiply
    28,803.68x = 39,751.38 × 16,061
  4. Step 4: Simplify right side
    28,803.68x = 638,446,914.18
  5. Step 5: Solve for x
    x = 638,446,914.18/28,803.68
  6. Step 6: Final answer
    x = 22,165.46

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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.