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Finding the Fourth Proportional to 1,267.47, 1,900.49 and 924.75

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Solution

The fourth proportional to 1,267.47, 1,900.49 and 924.75 is: 1,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.47 : 1,900.49 = 924.75 : x
  2. Step 2: Convert to fraction form
    1,267.47/1,900.49 = 924.75/x
  3. Step 3: Cross multiply
    1,267.47x = 1,900.49 × 924.75
  4. Step 4: Simplify right side
    1,267.47x = 1,757,473.50
  5. Step 5: Solve for x
    x = 1,757,473.50/1,267.47
  6. Step 6: Final answer
    x = 1,386.60

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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.