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Finding the Fourth Proportional to 15,774.23, 21,766.08 and 9,060.14

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Solution

The fourth proportional to 15,774.23, 21,766.08 and 9,060.14 is: 12,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,774.23 : 21,766.08 = 9,060.14 : x
  2. Step 2: Convert to fraction form
    15,774.23/21,766.08 = 9,060.14/x
  3. Step 3: Cross multiply
    15,774.23x = 21,766.08 × 9,060.14
  4. Step 4: Simplify right side
    15,774.23x = 197,203,732.05
  5. Step 5: Solve for x
    x = 197,203,732.05/15,774.23
  6. Step 6: Final answer
    x = 12,501.64

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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.