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Finding the Fourth Proportional to 47,847.49, 72,220.66 and 47,847.49

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Solution

The fourth proportional to 47,847.49, 72,220.66 and 47,847.49 is: 72,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,847.49 : 72,220.66 = 47,847.49 : x
  2. Step 2: Convert to fraction form
    47,847.49/72,220.66 = 47,847.49/x
  3. Step 3: Cross multiply
    47,847.49x = 72,220.66 × 47,847.49
  4. Step 4: Simplify right side
    47,847.49x = 3,455,577,307.14
  5. Step 5: Solve for x
    x = 3,455,577,307.14/47,847.49
  6. Step 6: Final answer
    x = 72,220.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.