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Finding the Fourth Proportional to 45,482.71, 68,110.12 and 28,792.39

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Solution

The fourth proportional to 45,482.71, 68,110.12 and 28,792.39 is: 43,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,482.71 : 68,110.12 = 28,792.39 : x
  2. Step 2: Convert to fraction form
    45,482.71/68,110.12 = 28,792.39/x
  3. Step 3: Cross multiply
    45,482.71x = 68,110.12 × 28,792.39
  4. Step 4: Simplify right side
    45,482.71x = 1,961,053,137.99
  5. Step 5: Solve for x
    x = 1,961,053,137.99/45,482.71
  6. Step 6: Final answer
    x = 43,116.45

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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.