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Finding the Fourth Proportional to 70,437.91, 97,204.12 and 38,173.42

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Solution

The fourth proportional to 70,437.91, 97,204.12 and 38,173.42 is: 52,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,437.91 : 97,204.12 = 38,173.42 : x
  2. Step 2: Convert to fraction form
    70,437.91/97,204.12 = 38,173.42/x
  3. Step 3: Cross multiply
    70,437.91x = 97,204.12 × 38,173.42
  4. Step 4: Simplify right side
    70,437.91x = 3,710,613,698.49
  5. Step 5: Solve for x
    x = 3,710,613,698.49/70,437.91
  6. Step 6: Final answer
    x = 52,679.21

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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.