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Finding the Fourth Proportional to 6,611,777.70, 9,917,666.55 and 6,133,480.80

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Solution

The fourth proportional to 6,611,777.70, 9,917,666.55 and 6,133,480.80 is: 9,200,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611,777.70 : 9,917,666.55 = 6,133,480.80 : x
  2. Step 2: Convert to fraction form
    6,611,777.70/9,917,666.55 = 6,133,480.80/x
  3. Step 3: Cross multiply
    6,611,777.70x = 9,917,666.55 × 6,133,480.80
  4. Step 4: Simplify right side
    6,611,777.70x = 60,829,817,365,227.24
  5. Step 5: Solve for x
    x = 60,829,817,365,227.24/6,611,777.70
  6. Step 6: Final answer
    x = 9,200,221.20

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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.