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Finding the Fourth Proportional to 1,901.73, 2,852.60 and 715.99

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Solution

The fourth proportional to 1,901.73, 2,852.60 and 715.99 is: 1,073.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.73 : 2,852.60 = 715.99 : x
  2. Step 2: Convert to fraction form
    1,901.73/2,852.60 = 715.99/x
  3. Step 3: Cross multiply
    1,901.73x = 2,852.60 × 715.99
  4. Step 4: Simplify right side
    1,901.73x = 2,042,443.10
  5. Step 5: Solve for x
    x = 2,042,443.10/1,901.73
  6. Step 6: Final answer
    x = 1,073.99

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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.