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Finding the Fourth Proportional to 21,923.55, 32,885.63 and 7,132.55

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Solution

The fourth proportional to 21,923.55, 32,885.63 and 7,132.55 is: 10,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.55 : 32,885.63 = 7,132.55 : x
  2. Step 2: Convert to fraction form
    21,923.55/32,885.63 = 7,132.55/x
  3. Step 3: Cross multiply
    21,923.55x = 32,885.63 × 7,132.55
  4. Step 4: Simplify right side
    21,923.55x = 234,558,200.17
  5. Step 5: Solve for x
    x = 234,558,200.17/21,923.55
  6. Step 6: Final answer
    x = 10,698.92

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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.