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Finding the Fourth Proportional to 19,486,590.10, 27,326,015.90 and 19,486,590.10

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Solution

The fourth proportional to 19,486,590.10, 27,326,015.90 and 19,486,590.10 is: 27,326,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486,590.10 : 27,326,015.90 = 19,486,590.10 : x
  2. Step 2: Convert to fraction form
    19,486,590.10/27,326,015.90 = 19,486,590.10/x
  3. Step 3: Cross multiply
    19,486,590.10x = 27,326,015.90 × 19,486,590.10
  4. Step 4: Simplify right side
    19,486,590.10x = 532,490,870,909,382.62
  5. Step 5: Solve for x
    x = 532,490,870,909,382.62/19,486,590.10
  6. Step 6: Final answer
    x = 27,326,015.90

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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.