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Finding the Fourth Proportional to 70,578.27, 97,393.59 and 38,744.46

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Solution

The fourth proportional to 70,578.27, 97,393.59 and 38,744.46 is: 53,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,578.27 : 97,393.59 = 38,744.46 : x
  2. Step 2: Convert to fraction form
    70,578.27/97,393.59 = 38,744.46/x
  3. Step 3: Cross multiply
    70,578.27x = 97,393.59 × 38,744.46
  4. Step 4: Simplify right side
    70,578.27x = 3,773,462,052.01
  5. Step 5: Solve for x
    x = 3,773,462,052.01/70,578.27
  6. Step 6: Final answer
    x = 53,464.93

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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.