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Finding the Fourth Proportional to 70,767.50, 97,659.88 and 40,552.16

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Solution

The fourth proportional to 70,767.50, 97,659.88 and 40,552.16 is: 55,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,767.50 : 97,659.88 = 40,552.16 : x
  2. Step 2: Convert to fraction form
    70,767.50/97,659.88 = 40,552.16/x
  3. Step 3: Cross multiply
    70,767.50x = 97,659.88 × 40,552.16
  4. Step 4: Simplify right side
    70,767.50x = 3,960,318,489.66
  5. Step 5: Solve for x
    x = 3,960,318,489.66/70,767.50
  6. Step 6: Final answer
    x = 55,962.39

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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.