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Finding the Fourth Proportional to 22,570.32, 33,860.90 and 6,987.94

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Solution

The fourth proportional to 22,570.32, 33,860.90 and 6,987.94 is: 10,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,570.32 : 33,860.90 = 6,987.94 : x
  2. Step 2: Convert to fraction form
    22,570.32/33,860.90 = 6,987.94/x
  3. Step 3: Cross multiply
    22,570.32x = 33,860.90 × 6,987.94
  4. Step 4: Simplify right side
    22,570.32x = 236,617,937.55
  5. Step 5: Solve for x
    x = 236,617,937.55/22,570.32
  6. Step 6: Final answer
    x = 10,483.59

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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.