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Finding the Fourth Proportional to 33,125.44, 45,715.44 and 18,981.76

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Solution

The fourth proportional to 33,125.44, 45,715.44 and 18,981.76 is: 26,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,125.44 : 45,715.44 = 18,981.76 : x
  2. Step 2: Convert to fraction form
    33,125.44/45,715.44 = 18,981.76/x
  3. Step 3: Cross multiply
    33,125.44x = 45,715.44 × 18,981.76
  4. Step 4: Simplify right side
    33,125.44x = 867,759,510.37
  5. Step 5: Solve for x
    x = 867,759,510.37/33,125.44
  6. Step 6: Final answer
    x = 26,196.17

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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.