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Finding the Fourth Proportional to 70,418.52, 97,177.52 and 38,588.60

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Solution

The fourth proportional to 70,418.52, 97,177.52 and 38,588.60 is: 53,252.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,418.52 : 97,177.52 = 38,588.60 : x
  2. Step 2: Convert to fraction form
    70,418.52/97,177.52 = 38,588.60/x
  3. Step 3: Cross multiply
    70,418.52x = 97,177.52 × 38,588.60
  4. Step 4: Simplify right side
    70,418.52x = 3,749,944,448.27
  5. Step 5: Solve for x
    x = 3,749,944,448.27/70,418.52
  6. Step 6: Final answer
    x = 53,252.25

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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.