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Finding the Fourth Proportional to 7,136.08, 9,848.26 and 3,992.26

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Solution

The fourth proportional to 7,136.08, 9,848.26 and 3,992.26 is: 5,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.08 : 9,848.26 = 3,992.26 : x
  2. Step 2: Convert to fraction form
    7,136.08/9,848.26 = 3,992.26/x
  3. Step 3: Cross multiply
    7,136.08x = 9,848.26 × 3,992.26
  4. Step 4: Simplify right side
    7,136.08x = 39,316,814.47
  5. Step 5: Solve for x
    x = 39,316,814.47/7,136.08
  6. Step 6: Final answer
    x = 5,509.58

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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.