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Finding the Fourth Proportional to 19,110,947.70, 26,830,909.50 and 19,110,947.70

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Solution

The fourth proportional to 19,110,947.70, 26,830,909.50 and 19,110,947.70 is: 26,830,909.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110,947.70 : 26,830,909.50 = 19,110,947.70 : x
  2. Step 2: Convert to fraction form
    19,110,947.70/26,830,909.50 = 19,110,947.70/x
  3. Step 3: Cross multiply
    19,110,947.70x = 26,830,909.50 × 19,110,947.70
  4. Step 4: Simplify right side
    19,110,947.70x = 512,764,108,197,933.12
  5. Step 5: Solve for x
    x = 512,764,108,197,933.12/19,110,947.70
  6. Step 6: Final answer
    x = 26,830,909.50

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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.