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Finding the Fourth Proportional to 28,551.82, 42,803.12 and 11,033.94

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Solution

The fourth proportional to 28,551.82, 42,803.12 and 11,033.94 is: 16,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551.82 : 42,803.12 = 11,033.94 : x
  2. Step 2: Convert to fraction form
    28,551.82/42,803.12 = 11,033.94/x
  3. Step 3: Cross multiply
    28,551.82x = 42,803.12 × 11,033.94
  4. Step 4: Simplify right side
    28,551.82x = 472,287,057.89
  5. Step 5: Solve for x
    x = 472,287,057.89/28,551.82
  6. Step 6: Final answer
    x = 16,541.40

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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.