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Finding the Fourth Proportional to 61,916.04, 92,880.54 and 20,363.04

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Solution

The fourth proportional to 61,916.04, 92,880.54 and 20,363.04 is: 30,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,916.04 : 92,880.54 = 20,363.04 : x
  2. Step 2: Convert to fraction form
    61,916.04/92,880.54 = 20,363.04/x
  3. Step 3: Cross multiply
    61,916.04x = 92,880.54 × 20,363.04
  4. Step 4: Simplify right side
    61,916.04x = 1,891,330,151.24
  5. Step 5: Solve for x
    x = 1,891,330,151.24/61,916.04
  6. Step 6: Final answer
    x = 30,546.69

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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.