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Finding the Fourth Proportional to 25,187.56, 34,758.74 and 14,009.56

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Solution

The fourth proportional to 25,187.56, 34,758.74 and 14,009.56 is: 19,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,187.56 : 34,758.74 = 14,009.56 : x
  2. Step 2: Convert to fraction form
    25,187.56/34,758.74 = 14,009.56/x
  3. Step 3: Cross multiply
    25,187.56x = 34,758.74 × 14,009.56
  4. Step 4: Simplify right side
    25,187.56x = 486,954,653.55
  5. Step 5: Solve for x
    x = 486,954,653.55/25,187.56
  6. Step 6: Final answer
    x = 19,333.14

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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.