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Finding the Fourth Proportional to 45,363.76, 68,051.10 and 19,065.08

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Solution

The fourth proportional to 45,363.76, 68,051.10 and 19,065.08 is: 28,599.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,363.76 : 68,051.10 = 19,065.08 : x
  2. Step 2: Convert to fraction form
    45,363.76/68,051.10 = 19,065.08/x
  3. Step 3: Cross multiply
    45,363.76x = 68,051.10 × 19,065.08
  4. Step 4: Simplify right side
    45,363.76x = 1,297,399,907.21
  5. Step 5: Solve for x
    x = 1,297,399,907.21/45,363.76
  6. Step 6: Final answer
    x = 28,599.92

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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.