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Finding the Fourth Proportional to 19,110,998.45, 26,830,980.55 and 19,110,998.45

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Solution

The fourth proportional to 19,110,998.45, 26,830,980.55 and 19,110,998.45 is: 26,830,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110,998.45 : 26,830,980.55 = 19,110,998.45 : x
  2. Step 2: Convert to fraction form
    19,110,998.45/26,830,980.55 = 19,110,998.45/x
  3. Step 3: Cross multiply
    19,110,998.45x = 26,830,980.55 × 19,110,998.45
  4. Step 4: Simplify right side
    19,110,998.45x = 512,766,827,703,030.12
  5. Step 5: Solve for x
    x = 512,766,827,703,030.12/19,110,998.45
  6. Step 6: Final answer
    x = 26,830,980.55

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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.