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Finding the Fourth Proportional to 5,166.43, 7,750.16 and 1,655.55

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Solution

The fourth proportional to 5,166.43, 7,750.16 and 1,655.55 is: 2,483.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.43 : 7,750.16 = 1,655.55 : x
  2. Step 2: Convert to fraction form
    5,166.43/7,750.16 = 1,655.55/x
  3. Step 3: Cross multiply
    5,166.43x = 7,750.16 × 1,655.55
  4. Step 4: Simplify right side
    5,166.43x = 12,830,777.39
  5. Step 5: Solve for x
    x = 12,830,777.39/5,166.43
  6. Step 6: Final answer
    x = 2,483.49

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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.