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Finding the Fourth Proportional to 15,954.34, 22,019.06 and 9,151.02

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Solution

The fourth proportional to 15,954.34, 22,019.06 and 9,151.02 is: 12,629.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,954.34 : 22,019.06 = 9,151.02 : x
  2. Step 2: Convert to fraction form
    15,954.34/22,019.06 = 9,151.02/x
  3. Step 3: Cross multiply
    15,954.34x = 22,019.06 × 9,151.02
  4. Step 4: Simplify right side
    15,954.34x = 201,496,769.08
  5. Step 5: Solve for x
    x = 201,496,769.08/15,954.34
  6. Step 6: Final answer
    x = 12,629.59

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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.