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Finding the Fourth Proportional to 39,168.41, 58,810.94 and 15,840.41

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Solution

The fourth proportional to 39,168.41, 58,810.94 and 15,840.41 is: 23,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.41 : 58,810.94 = 15,840.41 : x
  2. Step 2: Convert to fraction form
    39,168.41/58,810.94 = 15,840.41/x
  3. Step 3: Cross multiply
    39,168.41x = 58,810.94 × 15,840.41
  4. Step 4: Simplify right side
    39,168.41x = 931,589,402.09
  5. Step 5: Solve for x
    x = 931,589,402.09/39,168.41
  6. Step 6: Final answer
    x = 23,784.20

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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.