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Finding the Fourth Proportional to 7,092,999.28, 9,788,349.93 and 4,037,213.50

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Solution

The fourth proportional to 7,092,999.28, 9,788,349.93 and 4,037,213.50 is: 5,571,360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092,999.28 : 9,788,349.93 = 4,037,213.50 : x
  2. Step 2: Convert to fraction form
    7,092,999.28/9,788,349.93 = 4,037,213.50/x
  3. Step 3: Cross multiply
    7,092,999.28x = 9,788,349.93 × 4,037,213.50
  4. Step 4: Simplify right side
    7,092,999.28x = 39,517,658,480,120.05
  5. Step 5: Solve for x
    x = 39,517,658,480,120.05/7,092,999.28
  6. Step 6: Final answer
    x = 5,571,360.85

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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.