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Finding the Fourth Proportional to 4,651.90, 6,415.02 and 4,247.32

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Solution

The fourth proportional to 4,651.90, 6,415.02 and 4,247.32 is: 5,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651.90 : 6,415.02 = 4,247.32 : x
  2. Step 2: Convert to fraction form
    4,651.90/6,415.02 = 4,247.32/x
  3. Step 3: Cross multiply
    4,651.90x = 6,415.02 × 4,247.32
  4. Step 4: Simplify right side
    4,651.90x = 27,246,642.75
  5. Step 5: Solve for x
    x = 27,246,642.75/4,651.90
  6. Step 6: Final answer
    x = 5,857.10

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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.