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Finding the Fourth Proportional to 63,712.56, 87,919.56 and 35,417.28

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Solution

The fourth proportional to 63,712.56, 87,919.56 and 35,417.28 is: 48,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,712.56 : 87,919.56 = 35,417.28 : x
  2. Step 2: Convert to fraction form
    63,712.56/87,919.56 = 35,417.28/x
  3. Step 3: Cross multiply
    63,712.56x = 87,919.56 × 35,417.28
  4. Step 4: Simplify right side
    63,712.56x = 3,113,871,674.00
  5. Step 5: Solve for x
    x = 3,113,871,674.00/63,712.56
  6. Step 6: Final answer
    x = 48,873.75

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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.