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Finding the Fourth Proportional to 32,909,781.20, 49,364,671.80 and 15,903,669.20

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Solution

The fourth proportional to 32,909,781.20, 49,364,671.80 and 15,903,669.20 is: 23,855,503.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,909,781.20 : 49,364,671.80 = 15,903,669.20 : x
  2. Step 2: Convert to fraction form
    32,909,781.20/49,364,671.80 = 15,903,669.20/x
  3. Step 3: Cross multiply
    32,909,781.20x = 49,364,671.80 × 15,903,669.20
  4. Step 4: Simplify right side
    32,909,781.20x = 785,079,410,473,768.50
  5. Step 5: Solve for x
    x = 785,079,410,473,768.50/32,909,781.20
  6. Step 6: Final answer
    x = 23,855,503.80

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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.