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Finding the Fourth Proportional to 63,368.85, 87,439.86 and 35,074.47

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Solution

The fourth proportional to 63,368.85, 87,439.86 and 35,074.47 is: 48,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,368.85 : 87,439.86 = 35,074.47 : x
  2. Step 2: Convert to fraction form
    63,368.85/87,439.86 = 35,074.47/x
  3. Step 3: Cross multiply
    63,368.85x = 87,439.86 × 35,074.47
  4. Step 4: Simplify right side
    63,368.85x = 3,066,906,746.37
  5. Step 5: Solve for x
    x = 3,066,906,746.37/63,368.85
  6. Step 6: Final answer
    x = 48,397.70

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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.