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Finding the Fourth Proportional to 63,407.75, 87,438.76 and 46,414.76

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Solution

The fourth proportional to 63,407.75, 87,438.76 and 46,414.76 is: 64,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,407.75 : 87,438.76 = 46,414.76 : x
  2. Step 2: Convert to fraction form
    63,407.75/87,438.76 = 46,414.76/x
  3. Step 3: Cross multiply
    63,407.75x = 87,438.76 × 46,414.76
  4. Step 4: Simplify right side
    63,407.75x = 4,058,448,506.87
  5. Step 5: Solve for x
    x = 4,058,448,506.87/63,407.75
  6. Step 6: Final answer
    x = 64,005.56

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1.5x scale

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.