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Finding the Fourth Proportional to 63,436.50, 87,541.56 and 39,561.48

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Solution

The fourth proportional to 63,436.50, 87,541.56 and 39,561.48 is: 54,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,436.50 : 87,541.56 = 39,561.48 : x
  2. Step 2: Convert to fraction form
    63,436.50/87,541.56 = 39,561.48/x
  3. Step 3: Cross multiply
    63,436.50x = 87,541.56 × 39,561.48
  4. Step 4: Simplify right side
    63,436.50x = 3,463,273,675.11
  5. Step 5: Solve for x
    x = 3,463,273,675.11/63,436.50
  6. Step 6: Final answer
    x = 54,594.34

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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.