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Finding the Fourth Proportional to 15,404.92, 21,262.08 and 9,736.06

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Solution

The fourth proportional to 15,404.92, 21,262.08 and 9,736.06 is: 13,437.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.92 : 21,262.08 = 9,736.06 : x
  2. Step 2: Convert to fraction form
    15,404.92/21,262.08 = 9,736.06/x
  3. Step 3: Cross multiply
    15,404.92x = 21,262.08 × 9,736.06
  4. Step 4: Simplify right side
    15,404.92x = 207,008,886.60
  5. Step 5: Solve for x
    x = 207,008,886.60/15,404.92
  6. Step 6: Final answer
    x = 13,437.84

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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.