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Finding the Fourth Proportional to 30,348.80, 41,914.02 and 23,101.40

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Solution

The fourth proportional to 30,348.80, 41,914.02 and 23,101.40 is: 31,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.80 : 41,914.02 = 23,101.40 : x
  2. Step 2: Convert to fraction form
    30,348.80/41,914.02 = 23,101.40/x
  3. Step 3: Cross multiply
    30,348.80x = 41,914.02 × 23,101.40
  4. Step 4: Simplify right side
    30,348.80x = 968,272,603.10
  5. Step 5: Solve for x
    x = 968,272,603.10/30,348.80
  6. Step 6: Final answer
    x = 31,904.81

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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.