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Finding the Fourth Proportional to 22,011.99, 33,017.99 and 9,521.79

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Solution

The fourth proportional to 22,011.99, 33,017.99 and 9,521.79 is: 14,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.99 : 33,017.99 = 9,521.79 : x
  2. Step 2: Convert to fraction form
    22,011.99/33,017.99 = 9,521.79/x
  3. Step 3: Cross multiply
    22,011.99x = 33,017.99 × 9,521.79
  4. Step 4: Simplify right side
    22,011.99x = 314,390,319.39
  5. Step 5: Solve for x
    x = 314,390,319.39/22,011.99
  6. Step 6: Final answer
    x = 14,282.69

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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.