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Finding the Fourth Proportional to 18,889,730.80, 26,496,011.60 and 18,889,730.80

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Solution

The fourth proportional to 18,889,730.80, 26,496,011.60 and 18,889,730.80 is: 26,496,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889,730.80 : 26,496,011.60 = 18,889,730.80 : x
  2. Step 2: Convert to fraction form
    18,889,730.80/26,496,011.60 = 18,889,730.80/x
  3. Step 3: Cross multiply
    18,889,730.80x = 26,496,011.60 × 18,889,730.80
  4. Step 4: Simplify right side
    18,889,730.80x = 500,502,526,397,677.31
  5. Step 5: Solve for x
    x = 500,502,526,397,677.31/18,889,730.80
  6. Step 6: Final answer
    x = 26,496,011.60

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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.