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Finding the Fourth Proportional to 1,037.04, 1,557.09 and 692.52

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Solution

The fourth proportional to 1,037.04, 1,557.09 and 692.52 is: 1,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.04 : 1,557.09 = 692.52 : x
  2. Step 2: Convert to fraction form
    1,037.04/1,557.09 = 692.52/x
  3. Step 3: Cross multiply
    1,037.04x = 1,557.09 × 692.52
  4. Step 4: Simplify right side
    1,037.04x = 1,078,315.97
  5. Step 5: Solve for x
    x = 1,078,315.97/1,037.04
  6. Step 6: Final answer
    x = 1,039.80

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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.