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Finding the Fourth Proportional to 1,252.17, 1,875.42 and 1,069.92

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Solution

The fourth proportional to 1,252.17, 1,875.42 and 1,069.92 is: 1,602.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.17 : 1,875.42 = 1,069.92 : x
  2. Step 2: Convert to fraction form
    1,252.17/1,875.42 = 1,069.92/x
  3. Step 3: Cross multiply
    1,252.17x = 1,875.42 × 1,069.92
  4. Step 4: Simplify right side
    1,252.17x = 2,006,549.37
  5. Step 5: Solve for x
    x = 2,006,549.37/1,252.17
  6. Step 6: Final answer
    x = 1,602.46

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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.