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Finding the Fourth Proportional to 4,857.45, 6,695.05 and 4,015.45

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Solution

The fourth proportional to 4,857.45, 6,695.05 and 4,015.45 is: 5,534.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,857.45 : 6,695.05 = 4,015.45 : x
  2. Step 2: Convert to fraction form
    4,857.45/6,695.05 = 4,015.45/x
  3. Step 3: Cross multiply
    4,857.45x = 6,695.05 × 4,015.45
  4. Step 4: Simplify right side
    4,857.45x = 26,883,638.52
  5. Step 5: Solve for x
    x = 26,883,638.52/4,857.45
  6. Step 6: Final answer
    x = 5,534.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.