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Finding the Fourth Proportional to 30,696.48, 42,360.72 and 17,267.73

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Solution

The fourth proportional to 30,696.48, 42,360.72 and 17,267.73 is: 23,829.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,696.48 : 42,360.72 = 17,267.73 : x
  2. Step 2: Convert to fraction form
    30,696.48/42,360.72 = 17,267.73/x
  3. Step 3: Cross multiply
    30,696.48x = 42,360.72 × 17,267.73
  4. Step 4: Simplify right side
    30,696.48x = 731,473,475.57
  5. Step 5: Solve for x
    x = 731,473,475.57/30,696.48
  6. Step 6: Final answer
    x = 23,829.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.