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Finding the Fourth Proportional to 70,754.88, 97,655.69 and 40,560.46

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Solution

The fourth proportional to 70,754.88, 97,655.69 and 40,560.46 is: 55,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,754.88 : 97,655.69 = 40,560.46 : x
  2. Step 2: Convert to fraction form
    70,754.88/97,655.69 = 40,560.46/x
  3. Step 3: Cross multiply
    70,754.88x = 97,655.69 × 40,560.46
  4. Step 4: Simplify right side
    70,754.88x = 3,960,959,708.02
  5. Step 5: Solve for x
    x = 3,960,959,708.02/70,754.88
  6. Step 6: Final answer
    x = 55,981.43

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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.