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Finding the Fourth Proportional to 70,415.93, 97,174.79 and 38,585.36

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Solution

The fourth proportional to 70,415.93, 97,174.79 and 38,585.36 is: 53,248.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,415.93 : 97,174.79 = 38,585.36 : x
  2. Step 2: Convert to fraction form
    70,415.93/97,174.79 = 38,585.36/x
  3. Step 3: Cross multiply
    70,415.93x = 97,174.79 × 38,585.36
  4. Step 4: Simplify right side
    70,415.93x = 3,749,524,449.78
  5. Step 5: Solve for x
    x = 3,749,524,449.78/70,415.93
  6. Step 6: Final answer
    x = 53,248.24

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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.