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Finding the Fourth Proportional to 33,272.50, 45,916.08 and 18,368.50

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Solution

The fourth proportional to 33,272.50, 45,916.08 and 18,368.50 is: 25,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,272.50 : 45,916.08 = 18,368.50 : x
  2. Step 2: Convert to fraction form
    33,272.50/45,916.08 = 18,368.50/x
  3. Step 3: Cross multiply
    33,272.50x = 45,916.08 × 18,368.50
  4. Step 4: Simplify right side
    33,272.50x = 843,409,515.48
  5. Step 5: Solve for x
    x = 843,409,515.48/33,272.50
  6. Step 6: Final answer
    x = 25,348.55

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1.5x scale

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.