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Finding the Fourth Proportional to 9,555.81, 13,204.13 and 7,475.73

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Solution

The fourth proportional to 9,555.81, 13,204.13 and 7,475.73 is: 10,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.81 : 13,204.13 = 7,475.73 : x
  2. Step 2: Convert to fraction form
    9,555.81/13,204.13 = 7,475.73/x
  3. Step 3: Cross multiply
    9,555.81x = 13,204.13 × 7,475.73
  4. Step 4: Simplify right side
    9,555.81x = 98,710,473.39
  5. Step 5: Solve for x
    x = 98,710,473.39/9,555.81
  6. Step 6: Final answer
    x = 10,329.89

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Half scale
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Double scale
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1.5x scale

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.