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Finding the Fourth Proportional to 52,995.84, 73,162.70 and 40,869.80

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Solution

The fourth proportional to 52,995.84, 73,162.70 and 40,869.80 is: 56,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,995.84 : 73,162.70 = 40,869.80 : x
  2. Step 2: Convert to fraction form
    52,995.84/73,162.70 = 40,869.80/x
  3. Step 3: Cross multiply
    52,995.84x = 73,162.70 × 40,869.80
  4. Step 4: Simplify right side
    52,995.84x = 2,990,144,916.46
  5. Step 5: Solve for x
    x = 2,990,144,916.46/52,995.84
  6. Step 6: Final answer
    x = 56,422.26

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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.