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Finding the Fourth Proportional to 29,896,991.70, 44,845,487.55 and 28,403,999.70

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Solution

The fourth proportional to 29,896,991.70, 44,845,487.55 and 28,403,999.70 is: 42,605,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,896,991.70 : 44,845,487.55 = 28,403,999.70 : x
  2. Step 2: Convert to fraction form
    29,896,991.70/44,845,487.55 = 28,403,999.70/x
  3. Step 3: Cross multiply
    29,896,991.70x = 44,845,487.55 × 28,403,999.70
  4. Step 4: Simplify right side
    29,896,991.70x = 1,273,791,214,916,553.50
  5. Step 5: Solve for x
    x = 1,273,791,214,916,553.50/29,896,991.70
  6. Step 6: Final answer
    x = 42,605,999.55

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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.