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Finding the Fourth Proportional to 15,058.78, 20,774.54 and 10,585.42

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Solution

The fourth proportional to 15,058.78, 20,774.54 and 10,585.42 is: 14,603.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.78 : 20,774.54 = 10,585.42 : x
  2. Step 2: Convert to fraction form
    15,058.78/20,774.54 = 10,585.42/x
  3. Step 3: Cross multiply
    15,058.78x = 20,774.54 × 10,585.42
  4. Step 4: Simplify right side
    15,058.78x = 219,907,231.21
  5. Step 5: Solve for x
    x = 219,907,231.21/15,058.78
  6. Step 6: Final answer
    x = 14,603.26

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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.