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Finding the Fourth Proportional to 1,461.52, 2,192.54 and 692

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Solution

The fourth proportional to 1,461.52, 2,192.54 and 692 is: 1,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.52 : 2,192.54 = 692 : x
  2. Step 2: Convert to fraction form
    1,461.52/2,192.54 = 692/x
  3. Step 3: Cross multiply
    1,461.52x = 2,192.54 × 692
  4. Step 4: Simplify right side
    1,461.52x = 1,517,237.68
  5. Step 5: Solve for x
    x = 1,517,237.68/1,461.52
  6. Step 6: Final answer
    x = 1,038.12

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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.