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Finding the Fourth Proportional to 70,499.97, 97,288.29 and 38,668.59

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Solution

The fourth proportional to 70,499.97, 97,288.29 and 38,668.59 is: 53,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,499.97 : 97,288.29 = 38,668.59 : x
  2. Step 2: Convert to fraction form
    70,499.97/97,288.29 = 38,668.59/x
  3. Step 3: Cross multiply
    70,499.97x = 97,288.29 × 38,668.59
  4. Step 4: Simplify right side
    70,499.97x = 3,762,000,997.81
  5. Step 5: Solve for x
    x = 3,762,000,997.81/70,499.97
  6. Step 6: Final answer
    x = 53,361.74

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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.