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Finding the Fourth Proportional to 8,655,695.73, 12,984,725.12 and 3,605,825.25

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Solution

The fourth proportional to 8,655,695.73, 12,984,725.12 and 3,605,825.25 is: 5,409,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655,695.73 : 12,984,725.12 = 3,605,825.25 : x
  2. Step 2: Convert to fraction form
    8,655,695.73/12,984,725.12 = 3,605,825.25/x
  3. Step 3: Cross multiply
    8,655,695.73x = 12,984,725.12 × 3,605,825.25
  4. Step 4: Simplify right side
    8,655,695.73x = 46,820,649,702,005.27
  5. Step 5: Solve for x
    x = 46,820,649,702,005.27/8,655,695.73
  6. Step 6: Final answer
    x = 5,409,230.08

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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.