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Finding the Fourth Proportional to 7,220.52, 9,967.04 and 4,237.32

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Solution

The fourth proportional to 7,220.52, 9,967.04 and 4,237.32 is: 5,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.52 : 9,967.04 = 4,237.32 : x
  2. Step 2: Convert to fraction form
    7,220.52/9,967.04 = 4,237.32/x
  3. Step 3: Cross multiply
    7,220.52x = 9,967.04 × 4,237.32
  4. Step 4: Simplify right side
    7,220.52x = 42,233,537.93
  5. Step 5: Solve for x
    x = 42,233,537.93/7,220.52
  6. Step 6: Final answer
    x = 5,849.10

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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.