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Finding the Fourth Proportional to 51,405.44, 70,918.04 and 34,609.28

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Solution

The fourth proportional to 51,405.44, 70,918.04 and 34,609.28 is: 47,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,405.44 : 70,918.04 = 34,609.28 : x
  2. Step 2: Convert to fraction form
    51,405.44/70,918.04 = 34,609.28/x
  3. Step 3: Cross multiply
    51,405.44x = 70,918.04 × 34,609.28
  4. Step 4: Simplify right side
    51,405.44x = 2,454,422,303.41
  5. Step 5: Solve for x
    x = 2,454,422,303.41/51,405.44
  6. Step 6: Final answer
    x = 47,746.35

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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.