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Finding the Fourth Proportional to 63,716.79, 87,931.43 and 35,038.64

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Solution

The fourth proportional to 63,716.79, 87,931.43 and 35,038.64 is: 48,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,716.79 : 87,931.43 = 35,038.64 : x
  2. Step 2: Convert to fraction form
    63,716.79/87,931.43 = 35,038.64/x
  3. Step 3: Cross multiply
    63,716.79x = 87,931.43 × 35,038.64
  4. Step 4: Simplify right side
    63,716.79x = 3,080,997,105.60
  5. Step 5: Solve for x
    x = 3,080,997,105.60/63,716.79
  6. Step 6: Final answer
    x = 48,354.56

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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.