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Finding the Fourth Proportional to 21,958.53, 32,903.28 and 16,973.11

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Solution

The fourth proportional to 21,958.53, 32,903.28 and 16,973.11 is: 25,432.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.53 : 32,903.28 = 16,973.11 : x
  2. Step 2: Convert to fraction form
    21,958.53/32,903.28 = 16,973.11/x
  3. Step 3: Cross multiply
    21,958.53x = 32,903.28 × 16,973.11
  4. Step 4: Simplify right side
    21,958.53x = 558,470,826.28
  5. Step 5: Solve for x
    x = 558,470,826.28/21,958.53
  6. Step 6: Final answer
    x = 25,432.98

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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.