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Finding the Fourth Proportional to 21,804,734.70, 32,707,102.05 and 7,444,017.90

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Solution

The fourth proportional to 21,804,734.70, 32,707,102.05 and 7,444,017.90 is: 11,166,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,804,734.70 : 32,707,102.05 = 7,444,017.90 : x
  2. Step 2: Convert to fraction form
    21,804,734.70/32,707,102.05 = 7,444,017.90/x
  3. Step 3: Cross multiply
    21,804,734.70x = 32,707,102.05 × 7,444,017.90
  4. Step 4: Simplify right side
    21,804,734.70x = 243,472,253,117,326.72
  5. Step 5: Solve for x
    x = 243,472,253,117,326.72/21,804,734.70
  6. Step 6: Final answer
    x = 11,166,026.85

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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.