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Finding the Fourth Proportional to 28,032.80, 42,107.70 and 23,658.80

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Solution

The fourth proportional to 28,032.80, 42,107.70 and 23,658.80 is: 35,537.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.80 : 42,107.70 = 23,658.80 : x
  2. Step 2: Convert to fraction form
    28,032.80/42,107.70 = 23,658.80/x
  3. Step 3: Cross multiply
    28,032.80x = 42,107.70 × 23,658.80
  4. Step 4: Simplify right side
    28,032.80x = 996,217,652.76
  5. Step 5: Solve for x
    x = 996,217,652.76/28,032.80
  6. Step 6: Final answer
    x = 35,537.57

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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.