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Finding the Fourth Proportional to 60,913.51, 84,078.45 and 35,425.84

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Solution

The fourth proportional to 60,913.51, 84,078.45 and 35,425.84 is: 48,898.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,913.51 : 84,078.45 = 35,425.84 : x
  2. Step 2: Convert to fraction form
    60,913.51/84,078.45 = 35,425.84/x
  3. Step 3: Cross multiply
    60,913.51x = 84,078.45 × 35,425.84
  4. Step 4: Simplify right side
    60,913.51x = 2,978,549,717.15
  5. Step 5: Solve for x
    x = 2,978,549,717.15/60,913.51
  6. Step 6: Final answer
    x = 48,898.01

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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.