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Finding the Fourth Proportional to 70,843.47, 97,753.61 and 40,630.07

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Solution

The fourth proportional to 70,843.47, 97,753.61 and 40,630.07 is: 56,063.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,843.47 : 97,753.61 = 40,630.07 : x
  2. Step 2: Convert to fraction form
    70,843.47/97,753.61 = 40,630.07/x
  3. Step 3: Cross multiply
    70,843.47x = 97,753.61 × 40,630.07
  4. Step 4: Simplify right side
    70,843.47x = 3,971,735,325.13
  5. Step 5: Solve for x
    x = 3,971,735,325.13/70,843.47
  6. Step 6: Final answer
    x = 56,063.53

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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.