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Finding the Fourth Proportional to 1,606.10, 2,216.50 and 907.52

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Solution

The fourth proportional to 1,606.10, 2,216.50 and 907.52 is: 1,252.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.10 : 2,216.50 = 907.52 : x
  2. Step 2: Convert to fraction form
    1,606.10/2,216.50 = 907.52/x
  3. Step 3: Cross multiply
    1,606.10x = 2,216.50 × 907.52
  4. Step 4: Simplify right side
    1,606.10x = 2,011,518.08
  5. Step 5: Solve for x
    x = 2,011,518.08/1,606.10
  6. Step 6: Final answer
    x = 1,252.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.