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Finding the Fourth Proportional to 63,790.32, 88,015.63 and 53,620.01

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Solution

The fourth proportional to 63,790.32, 88,015.63 and 53,620.01 is: 73,982.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,790.32 : 88,015.63 = 53,620.01 : x
  2. Step 2: Convert to fraction form
    63,790.32/88,015.63 = 53,620.01/x
  3. Step 3: Cross multiply
    63,790.32x = 88,015.63 × 53,620.01
  4. Step 4: Simplify right side
    63,790.32x = 4,719,398,946.21
  5. Step 5: Solve for x
    x = 4,719,398,946.21/63,790.32
  6. Step 6: Final answer
    x = 73,982.99

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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.