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Finding the Fourth Proportional to 46,795.40, 70,217.40 and 20,502.80

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Solution

The fourth proportional to 46,795.40, 70,217.40 and 20,502.80 is: 30,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,795.40 : 70,217.40 = 20,502.80 : x
  2. Step 2: Convert to fraction form
    46,795.40/70,217.40 = 20,502.80/x
  3. Step 3: Cross multiply
    46,795.40x = 70,217.40 × 20,502.80
  4. Step 4: Simplify right side
    46,795.40x = 1,439,653,308.72
  5. Step 5: Solve for x
    x = 1,439,653,308.72/46,795.40
  6. Step 6: Final answer
    x = 30,764.85

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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.