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Finding the Fourth Proportional to 42,580.40, 63,899.40 and 23,860.40

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Solution

The fourth proportional to 42,580.40, 63,899.40 and 23,860.40 is: 35,806.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,580.40 : 63,899.40 = 23,860.40 : x
  2. Step 2: Convert to fraction form
    42,580.40/63,899.40 = 23,860.40/x
  3. Step 3: Cross multiply
    42,580.40x = 63,899.40 × 23,860.40
  4. Step 4: Simplify right side
    42,580.40x = 1,524,665,243.76
  5. Step 5: Solve for x
    x = 1,524,665,243.76/42,580.40
  6. Step 6: Final answer
    x = 35,806.74

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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.