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Finding the Fourth Proportional to 70,400.98, 97,152.53 and 38,134.99

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Solution

The fourth proportional to 70,400.98, 97,152.53 and 38,134.99 is: 52,625.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.98 : 97,152.53 = 38,134.99 : x
  2. Step 2: Convert to fraction form
    70,400.98/97,152.53 = 38,134.99/x
  3. Step 3: Cross multiply
    70,400.98x = 97,152.53 × 38,134.99
  4. Step 4: Simplify right side
    70,400.98x = 3,704,910,760.02
  5. Step 5: Solve for x
    x = 3,704,910,760.02/70,400.98
  6. Step 6: Final answer
    x = 52,625.84

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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.