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Finding the Fourth Proportional to 1,107.73, 1,652.95 and 1,009.49

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Solution

The fourth proportional to 1,107.73, 1,652.95 and 1,009.49 is: 1,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.73 : 1,652.95 = 1,009.49 : x
  2. Step 2: Convert to fraction form
    1,107.73/1,652.95 = 1,009.49/x
  3. Step 3: Cross multiply
    1,107.73x = 1,652.95 × 1,009.49
  4. Step 4: Simplify right side
    1,107.73x = 1,668,628.23
  5. Step 5: Solve for x
    x = 1,668,628.23/1,107.73
  6. Step 6: Final answer
    x = 1,506.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.