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Finding the Fourth Proportional to 28,334,446.20, 39,743,807.40 and 28,334,446.20

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Solution

The fourth proportional to 28,334,446.20, 39,743,807.40 and 28,334,446.20 is: 39,743,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334,446.20 : 39,743,807.40 = 28,334,446.20 : x
  2. Step 2: Convert to fraction form
    28,334,446.20/39,743,807.40 = 28,334,446.20/x
  3. Step 3: Cross multiply
    28,334,446.20x = 39,743,807.40 × 28,334,446.20
  4. Step 4: Simplify right side
    28,334,446.20x = 1,126,118,772,558,461.75
  5. Step 5: Solve for x
    x = 1,126,118,772,558,461.75/28,334,446.20
  6. Step 6: Final answer
    x = 39,743,807.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.