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Finding the Fourth Proportional to 70,616.74, 97,451.74 and 38,786.34

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Solution

The fourth proportional to 70,616.74, 97,451.74 and 38,786.34 is: 53,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,616.74 : 97,451.74 = 38,786.34 : x
  2. Step 2: Convert to fraction form
    70,616.74/97,451.74 = 38,786.34/x
  3. Step 3: Cross multiply
    70,616.74x = 97,451.74 × 38,786.34
  4. Step 4: Simplify right side
    70,616.74x = 3,779,796,321.23
  5. Step 5: Solve for x
    x = 3,779,796,321.23/70,616.74
  6. Step 6: Final answer
    x = 53,525.50

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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.