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Finding the Fourth Proportional to 42,485.40, 58,625.10 and 23,621.40

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Solution

The fourth proportional to 42,485.40, 58,625.10 and 23,621.40 is: 32,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,485.40 : 58,625.10 = 23,621.40 : x
  2. Step 2: Convert to fraction form
    42,485.40/58,625.10 = 23,621.40/x
  3. Step 3: Cross multiply
    42,485.40x = 58,625.10 × 23,621.40
  4. Step 4: Simplify right side
    42,485.40x = 1,384,806,937.14
  5. Step 5: Solve for x
    x = 1,384,806,937.14/42,485.40
  6. Step 6: Final answer
    x = 32,594.89

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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.