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Finding the Fourth Proportional to 30,064.40, 44,981.40 and 19,696.40

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Solution

The fourth proportional to 30,064.40, 44,981.40 and 19,696.40 is: 29,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,064.40 : 44,981.40 = 19,696.40 : x
  2. Step 2: Convert to fraction form
    30,064.40/44,981.40 = 19,696.40/x
  3. Step 3: Cross multiply
    30,064.40x = 44,981.40 × 19,696.40
  4. Step 4: Simplify right side
    30,064.40x = 885,971,646.96
  5. Step 5: Solve for x
    x = 885,971,646.96/30,064.40
  6. Step 6: Final answer
    x = 29,469.13

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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.