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Finding the Fourth Proportional to 8,655,550.80, 12,983,326.20 and 3,606,205.20

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Solution

The fourth proportional to 8,655,550.80, 12,983,326.20 and 3,606,205.20 is: 5,409,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655,550.80 : 12,983,326.20 = 3,606,205.20 : x
  2. Step 2: Convert to fraction form
    8,655,550.80/12,983,326.20 = 3,606,205.20/x
  3. Step 3: Cross multiply
    8,655,550.80x = 12,983,326.20 × 3,606,205.20
  4. Step 4: Simplify right side
    8,655,550.80x = 46,820,538,455,736.24
  5. Step 5: Solve for x
    x = 46,820,538,455,736.24/8,655,550.80
  6. Step 6: Final answer
    x = 5,409,307.80

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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.