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Finding the Fourth Proportional to 1,653.72, 2,281.50 and 1,033.08

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Solution

The fourth proportional to 1,653.72, 2,281.50 and 1,033.08 is: 1,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.72 : 2,281.50 = 1,033.08 : x
  2. Step 2: Convert to fraction form
    1,653.72/2,281.50 = 1,033.08/x
  3. Step 3: Cross multiply
    1,653.72x = 2,281.50 × 1,033.08
  4. Step 4: Simplify right side
    1,653.72x = 2,356,972.02
  5. Step 5: Solve for x
    x = 2,356,972.02/1,653.72
  6. Step 6: Final answer
    x = 1,425.25

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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.