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Finding the Fourth Proportional to 21,993.80, 32,925.90 and 14,606.60

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Solution

The fourth proportional to 21,993.80, 32,925.90 and 14,606.60 is: 21,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.80 : 32,925.90 = 14,606.60 : x
  2. Step 2: Convert to fraction form
    21,993.80/32,925.90 = 14,606.60/x
  3. Step 3: Cross multiply
    21,993.80x = 32,925.90 × 14,606.60
  4. Step 4: Simplify right side
    21,993.80x = 480,935,450.94
  5. Step 5: Solve for x
    x = 480,935,450.94/21,993.80
  6. Step 6: Final answer
    x = 21,866.86

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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.