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Finding the Fourth Proportional to 70,644.44, 97,487.76 and 38,378.22

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Solution

The fourth proportional to 70,644.44, 97,487.76 and 38,378.22 is: 52,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,644.44 : 97,487.76 = 38,378.22 : x
  2. Step 2: Convert to fraction form
    70,644.44/97,487.76 = 38,378.22/x
  3. Step 3: Cross multiply
    70,644.44x = 97,487.76 × 38,378.22
  4. Step 4: Simplify right side
    70,644.44x = 3,741,406,994.21
  5. Step 5: Solve for x
    x = 3,741,406,994.21/70,644.44
  6. Step 6: Final answer
    x = 52,961.10

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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.