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Finding the Fourth Proportional to 39,891.70, 59,848.35 and 35,539.30

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Solution

The fourth proportional to 39,891.70, 59,848.35 and 35,539.30 is: 53,318.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,891.70 : 59,848.35 = 35,539.30 : x
  2. Step 2: Convert to fraction form
    39,891.70/59,848.35 = 35,539.30/x
  3. Step 3: Cross multiply
    39,891.70x = 59,848.35 × 35,539.30
  4. Step 4: Simplify right side
    39,891.70x = 2,126,968,465.16
  5. Step 5: Solve for x
    x = 2,126,968,465.16/39,891.70
  6. Step 6: Final answer
    x = 53,318.57

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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.