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Finding the Fourth Proportional to 25,707.66, 38,554.74 and 8,840.49

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Solution

The fourth proportional to 25,707.66, 38,554.74 and 8,840.49 is: 13,258.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.66 : 38,554.74 = 8,840.49 : x
  2. Step 2: Convert to fraction form
    25,707.66/38,554.74 = 8,840.49/x
  3. Step 3: Cross multiply
    25,707.66x = 38,554.74 × 8,840.49
  4. Step 4: Simplify right side
    25,707.66x = 340,842,793.42
  5. Step 5: Solve for x
    x = 340,842,793.42/25,707.66
  6. Step 6: Final answer
    x = 13,258.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.