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Finding the Fourth Proportional to 66,984,935.70, 100,477,403.55 and 32,972,711.70

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Solution

The fourth proportional to 66,984,935.70, 100,477,403.55 and 32,972,711.70 is: 49,459,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,984,935.70 : 100,477,403.55 = 32,972,711.70 : x
  2. Step 2: Convert to fraction form
    66,984,935.70/100,477,403.55 = 32,972,711.70/x
  3. Step 3: Cross multiply
    66,984,935.70x = 100,477,403.55 × 32,972,711.70
  4. Step 4: Simplify right side
    66,984,935.70x = 3,313,012,459,618,706.50
  5. Step 5: Solve for x
    x = 3,313,012,459,618,706.50/66,984,935.70
  6. Step 6: Final answer
    x = 49,459,067.55

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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.