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Finding the Fourth Proportional to 70,502.25, 97,301.75 and 40,694.25

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Solution

The fourth proportional to 70,502.25, 97,301.75 and 40,694.25 is: 56,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,502.25 : 97,301.75 = 40,694.25 : x
  2. Step 2: Convert to fraction form
    70,502.25/97,301.75 = 40,694.25/x
  3. Step 3: Cross multiply
    70,502.25x = 97,301.75 × 40,694.25
  4. Step 4: Simplify right side
    70,502.25x = 3,959,621,536.47
  5. Step 5: Solve for x
    x = 3,959,621,536.47/70,502.25
  6. Step 6: Final answer
    x = 56,163.05

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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.