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Finding the Fourth Proportional to 33,273, 45,916.80 and 18,369

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Solution

The fourth proportional to 33,273, 45,916.80 and 18,369 is: 25,349.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,273 : 45,916.80 = 18,369 : x
  2. Step 2: Convert to fraction form
    33,273/45,916.80 = 18,369/x
  3. Step 3: Cross multiply
    33,273x = 45,916.80 × 18,369
  4. Step 4: Simplify right side
    33,273x = 843,445,699.20
  5. Step 5: Solve for x
    x = 843,445,699.20/33,273
  6. Step 6: Final answer
    x = 25,349.25

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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.