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Finding the Fourth Proportional to 52,108.70, 71,909.70 and 29,455.03

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Solution

The fourth proportional to 52,108.70, 71,909.70 and 29,455.03 is: 40,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,108.70 : 71,909.70 = 29,455.03 : x
  2. Step 2: Convert to fraction form
    52,108.70/71,909.70 = 29,455.03/x
  3. Step 3: Cross multiply
    52,108.70x = 71,909.70 × 29,455.03
  4. Step 4: Simplify right side
    52,108.70x = 2,118,102,011.24
  5. Step 5: Solve for x
    x = 2,118,102,011.24/52,108.70
  6. Step 6: Final answer
    x = 40,647.76

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1.5x scale

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.