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Finding the Fourth Proportional to 6,458.25, 8,907.53 and 4,472.13

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Solution

The fourth proportional to 6,458.25, 8,907.53 and 4,472.13 is: 6,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.25 : 8,907.53 = 4,472.13 : x
  2. Step 2: Convert to fraction form
    6,458.25/8,907.53 = 4,472.13/x
  3. Step 3: Cross multiply
    6,458.25x = 8,907.53 × 4,472.13
  4. Step 4: Simplify right side
    6,458.25x = 39,835,609.78
  5. Step 5: Solve for x
    x = 39,835,609.78/6,458.25
  6. Step 6: Final answer
    x = 6,168.17

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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.