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Finding the Fourth Proportional to 17,820,903.80, 26,731,355.70 and 17,820,903.80

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Solution

The fourth proportional to 17,820,903.80, 26,731,355.70 and 17,820,903.80 is: 26,731,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820,903.80 : 26,731,355.70 = 17,820,903.80 : x
  2. Step 2: Convert to fraction form
    17,820,903.80/26,731,355.70 = 17,820,903.80/x
  3. Step 3: Cross multiply
    17,820,903.80x = 26,731,355.70 × 17,820,903.80
  4. Step 4: Simplify right side
    17,820,903.80x = 476,376,918,373,281.69
  5. Step 5: Solve for x
    x = 476,376,918,373,281.69/17,820,903.80
  6. Step 6: Final answer
    x = 26,731,355.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.