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Finding the Fourth Proportional to 70,910.02, 97,855.02 and 40,282.90

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Solution

The fourth proportional to 70,910.02, 97,855.02 and 40,282.90 is: 55,589.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,910.02 : 97,855.02 = 40,282.90 : x
  2. Step 2: Convert to fraction form
    70,910.02/97,855.02 = 40,282.90/x
  3. Step 3: Cross multiply
    70,910.02x = 97,855.02 × 40,282.90
  4. Step 4: Simplify right side
    70,910.02x = 3,941,883,985.16
  5. Step 5: Solve for x
    x = 3,941,883,985.16/70,910.02
  6. Step 6: Final answer
    x = 55,589.94

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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.