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Finding the Fourth Proportional to 19,614,279.20, 29,365,431.60 and 19,614,279.20

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Solution

The fourth proportional to 19,614,279.20, 29,365,431.60 and 19,614,279.20 is: 29,365,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614,279.20 : 29,365,431.60 = 19,614,279.20 : x
  2. Step 2: Convert to fraction form
    19,614,279.20/29,365,431.60 = 19,614,279.20/x
  3. Step 3: Cross multiply
    19,614,279.20x = 29,365,431.60 × 19,614,279.20
  4. Step 4: Simplify right side
    19,614,279.20x = 575,981,774,230,902.75
  5. Step 5: Solve for x
    x = 575,981,774,230,902.75/19,614,279.20
  6. Step 6: Final answer
    x = 29,365,431.60

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1.5x scale

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.