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Finding the Fourth Proportional to 22,362.58, 30,860.97 and 12,291.14

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Solution

The fourth proportional to 22,362.58, 30,860.97 and 12,291.14 is: 16,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,362.58 : 30,860.97 = 12,291.14 : x
  2. Step 2: Convert to fraction form
    22,362.58/30,860.97 = 12,291.14/x
  3. Step 3: Cross multiply
    22,362.58x = 30,860.97 × 12,291.14
  4. Step 4: Simplify right side
    22,362.58x = 379,316,533.87
  5. Step 5: Solve for x
    x = 379,316,533.87/22,362.58
  6. Step 6: Final answer
    x = 16,962.11

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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.