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Finding the Fourth Proportional to 70,613.94, 97,448.40 and 38,348.64

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Solution

The fourth proportional to 70,613.94, 97,448.40 and 38,348.64 is: 52,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,613.94 : 97,448.40 = 38,348.64 : x
  2. Step 2: Convert to fraction form
    70,613.94/97,448.40 = 38,348.64/x
  3. Step 3: Cross multiply
    70,613.94x = 97,448.40 × 38,348.64
  4. Step 4: Simplify right side
    70,613.94x = 3,737,013,610.18
  5. Step 5: Solve for x
    x = 3,737,013,610.18/70,613.94
  6. Step 6: Final answer
    x = 52,921.75

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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.