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Finding the Fourth Proportional to 63,405.79, 87,499.85 and 36,548.12

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Solution

The fourth proportional to 63,405.79, 87,499.85 and 36,548.12 is: 50,436.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,405.79 : 87,499.85 = 36,548.12 : x
  2. Step 2: Convert to fraction form
    63,405.79/87,499.85 = 36,548.12/x
  3. Step 3: Cross multiply
    63,405.79x = 87,499.85 × 36,548.12
  4. Step 4: Simplify right side
    63,405.79x = 3,197,955,017.78
  5. Step 5: Solve for x
    x = 3,197,955,017.78/63,405.79
  6. Step 6: Final answer
    x = 50,436.32

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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.