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Finding the Fourth Proportional to 70,741, 97,636.45 and 40,546.56

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Solution

The fourth proportional to 70,741, 97,636.45 and 40,546.56 is: 55,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,741 : 97,636.45 = 40,546.56 : x
  2. Step 2: Convert to fraction form
    70,741/97,636.45 = 40,546.56/x
  3. Step 3: Cross multiply
    70,741x = 97,636.45 × 40,546.56
  4. Step 4: Simplify right side
    70,741x = 3,958,822,320.84
  5. Step 5: Solve for x
    x = 3,958,822,320.84/70,741
  6. Step 6: Final answer
    x = 55,962.20

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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.