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Finding the Fourth Proportional to 70,657.80, 97,506.65 and 38,826.02

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Solution

The fourth proportional to 70,657.80, 97,506.65 and 38,826.02 is: 53,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,657.80 : 97,506.65 = 38,826.02 : x
  2. Step 2: Convert to fraction form
    70,657.80/97,506.65 = 38,826.02/x
  3. Step 3: Cross multiply
    70,657.80x = 97,506.65 × 38,826.02
  4. Step 4: Simplify right side
    70,657.80x = 3,785,794,655.50
  5. Step 5: Solve for x
    x = 3,785,794,655.50/70,657.80
  6. Step 6: Final answer
    x = 53,579.29

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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.