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Finding the Fourth Proportional to 17,808,860.40, 26,692,295.40 and 9,284,809.20

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Solution

The fourth proportional to 17,808,860.40, 26,692,295.40 and 9,284,809.20 is: 13,916,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,808,860.40 : 26,692,295.40 = 9,284,809.20 : x
  2. Step 2: Convert to fraction form
    17,808,860.40/26,692,295.40 = 9,284,809.20/x
  3. Step 3: Cross multiply
    17,808,860.40x = 26,692,295.40 × 9,284,809.20
  4. Step 4: Simplify right side
    17,808,860.40x = 247,832,869,899,037.66
  5. Step 5: Solve for x
    x = 247,832,869,899,037.66/17,808,860.40
  6. Step 6: Final answer
    x = 13,916,267.76

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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.