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Finding the Fourth Proportional to 62,946.32, 86,865 and 34,651.28

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Solution

The fourth proportional to 62,946.32, 86,865 and 34,651.28 is: 47,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,946.32 : 86,865 = 34,651.28 : x
  2. Step 2: Convert to fraction form
    62,946.32/86,865 = 34,651.28/x
  3. Step 3: Cross multiply
    62,946.32x = 86,865 × 34,651.28
  4. Step 4: Simplify right side
    62,946.32x = 3,009,983,437.20
  5. Step 5: Solve for x
    x = 3,009,983,437.20/62,946.32
  6. Step 6: Final answer
    x = 47,818.26

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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.