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Finding the Fourth Proportional to 38,834,507.80, 53,611,770.03 and 28,368,773.74

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Solution

The fourth proportional to 38,834,507.80, 53,611,770.03 and 28,368,773.74 is: 39,163,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,834,507.80 : 53,611,770.03 = 28,368,773.74 : x
  2. Step 2: Convert to fraction form
    38,834,507.80/53,611,770.03 = 28,368,773.74/x
  3. Step 3: Cross multiply
    38,834,507.80x = 53,611,770.03 × 28,368,773.74
  4. Step 4: Simplify right side
    38,834,507.80x = 1,520,900,173,513,924.25
  5. Step 5: Solve for x
    x = 1,520,900,173,513,924.25/38,834,507.80
  6. Step 6: Final answer
    x = 39,163,626.88

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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.