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Finding the Fourth Proportional to 18,692,934.60, 26,207,899.80 and 18,692,934.60

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Solution

The fourth proportional to 18,692,934.60, 26,207,899.80 and 18,692,934.60 is: 26,207,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,934.60 : 26,207,899.80 = 18,692,934.60 : x
  2. Step 2: Convert to fraction form
    18,692,934.60/26,207,899.80 = 18,692,934.60/x
  3. Step 3: Cross multiply
    18,692,934.60x = 26,207,899.80 × 18,692,934.60
  4. Step 4: Simplify right side
    18,692,934.60x = 489,902,556,964,753.12
  5. Step 5: Solve for x
    x = 489,902,556,964,753.12/18,692,934.60
  6. Step 6: Final answer
    x = 26,207,899.80

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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.