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Finding the Fourth Proportional to 16,488,986.40, 23,100,309.60 and 16,488,986.40

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Solution

The fourth proportional to 16,488,986.40, 23,100,309.60 and 16,488,986.40 is: 23,100,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488,986.40 : 23,100,309.60 = 16,488,986.40 : x
  2. Step 2: Convert to fraction form
    16,488,986.40/23,100,309.60 = 16,488,986.40/x
  3. Step 3: Cross multiply
    16,488,986.40x = 23,100,309.60 × 16,488,986.40
  4. Step 4: Simplify right side
    16,488,986.40x = 380,900,690,830,189.50
  5. Step 5: Solve for x
    x = 380,900,690,830,189.50/16,488,986.40
  6. Step 6: Final answer
    x = 23,100,309.60

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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.