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Finding the Fourth Proportional to 32,798,692.12, 45,261,929.64 and 18,115,364.88

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Solution

The fourth proportional to 32,798,692.12, 45,261,929.64 and 18,115,364.88 is: 24,999,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,798,692.12 : 45,261,929.64 = 18,115,364.88 : x
  2. Step 2: Convert to fraction form
    32,798,692.12/45,261,929.64 = 18,115,364.88/x
  3. Step 3: Cross multiply
    32,798,692.12x = 45,261,929.64 × 18,115,364.88
  4. Step 4: Simplify right side
    32,798,692.12x = 819,936,370,601,487
  5. Step 5: Solve for x
    x = 819,936,370,601,487/32,798,692.12
  6. Step 6: Final answer
    x = 24,999,056.90

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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.