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Finding the Fourth Proportional to 70,891.51, 97,844.43 and 40,697.23

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Solution

The fourth proportional to 70,891.51, 97,844.43 and 40,697.23 is: 56,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,891.51 : 97,844.43 = 40,697.23 : x
  2. Step 2: Convert to fraction form
    70,891.51/97,844.43 = 40,697.23/x
  3. Step 3: Cross multiply
    70,891.51x = 97,844.43 × 40,697.23
  4. Step 4: Simplify right side
    70,891.51x = 3,981,997,271.93
  5. Step 5: Solve for x
    x = 3,981,997,271.93/70,891.51
  6. Step 6: Final answer
    x = 56,170.30

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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.