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Finding the Fourth Proportional to 4,913.61, 7,365.69 and 3,153.66

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Solution

The fourth proportional to 4,913.61, 7,365.69 and 3,153.66 is: 4,727.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.61 : 7,365.69 = 3,153.66 : x
  2. Step 2: Convert to fraction form
    4,913.61/7,365.69 = 3,153.66/x
  3. Step 3: Cross multiply
    4,913.61x = 7,365.69 × 3,153.66
  4. Step 4: Simplify right side
    4,913.61x = 23,228,881.93
  5. Step 5: Solve for x
    x = 23,228,881.93/4,913.61
  6. Step 6: Final answer
    x = 4,727.46

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1.5x scale

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.