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Finding the Fourth Proportional to 62,993.32, 86,931.40 and 34,699.60

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Solution

The fourth proportional to 62,993.32, 86,931.40 and 34,699.60 is: 47,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,993.32 : 86,931.40 = 34,699.60 : x
  2. Step 2: Convert to fraction form
    62,993.32/86,931.40 = 34,699.60/x
  3. Step 3: Cross multiply
    62,993.32x = 86,931.40 × 34,699.60
  4. Step 4: Simplify right side
    62,993.32x = 3,016,484,807.44
  5. Step 5: Solve for x
    x = 3,016,484,807.44/62,993.32
  6. Step 6: Final answer
    x = 47,885.79

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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.