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Finding the Fourth Proportional to 63,708.34, 87,920.50 and 35,414.50

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Solution

The fourth proportional to 63,708.34, 87,920.50 and 35,414.50 is: 48,873.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,708.34 : 87,920.50 = 35,414.50 : x
  2. Step 2: Convert to fraction form
    63,708.34/87,920.50 = 35,414.50/x
  3. Step 3: Cross multiply
    63,708.34x = 87,920.50 × 35,414.50
  4. Step 4: Simplify right side
    63,708.34x = 3,113,660,547.25
  5. Step 5: Solve for x
    x = 3,113,660,547.25/63,708.34
  6. Step 6: Final answer
    x = 48,873.67

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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.