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Finding the Fourth Proportional to 66,467.79, 99,701.69 and 27,015.66

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Solution

The fourth proportional to 66,467.79, 99,701.69 and 27,015.66 is: 40,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.79 : 99,701.69 = 27,015.66 : x
  2. Step 2: Convert to fraction form
    66,467.79/99,701.69 = 27,015.66/x
  3. Step 3: Cross multiply
    66,467.79x = 99,701.69 × 27,015.66
  4. Step 4: Simplify right side
    66,467.79x = 2,693,506,823.39
  5. Step 5: Solve for x
    x = 2,693,506,823.39/66,467.79
  6. Step 6: Final answer
    x = 40,523.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.