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Finding the Fourth Proportional to 21,923.34, 32,885.01 and 7,133.76

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Solution

The fourth proportional to 21,923.34, 32,885.01 and 7,133.76 is: 10,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.34 : 32,885.01 = 7,133.76 : x
  2. Step 2: Convert to fraction form
    21,923.34/32,885.01 = 7,133.76/x
  3. Step 3: Cross multiply
    21,923.34x = 32,885.01 × 7,133.76
  4. Step 4: Simplify right side
    21,923.34x = 234,593,768.94
  5. Step 5: Solve for x
    x = 234,593,768.94/21,923.34
  6. Step 6: Final answer
    x = 10,700.64

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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.