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Finding the Fourth Proportional to 7,235.40, 10,853.10 and 1,763.40

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Solution

The fourth proportional to 7,235.40, 10,853.10 and 1,763.40 is: 2,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.40 : 10,853.10 = 1,763.40 : x
  2. Step 2: Convert to fraction form
    7,235.40/10,853.10 = 1,763.40/x
  3. Step 3: Cross multiply
    7,235.40x = 10,853.10 × 1,763.40
  4. Step 4: Simplify right side
    7,235.40x = 19,138,356.54
  5. Step 5: Solve for x
    x = 19,138,356.54/7,235.40
  6. Step 6: Final answer
    x = 2,645.10

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.