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Finding the Fourth Proportional to 25,771.36, 38,671.90 and 13,925.16

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Solution

The fourth proportional to 25,771.36, 38,671.90 and 13,925.16 is: 20,895.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,771.36 : 38,671.90 = 13,925.16 : x
  2. Step 2: Convert to fraction form
    25,771.36/38,671.90 = 13,925.16/x
  3. Step 3: Cross multiply
    25,771.36x = 38,671.90 × 13,925.16
  4. Step 4: Simplify right side
    25,771.36x = 538,512,395.00
  5. Step 5: Solve for x
    x = 538,512,395.00/25,771.36
  6. Step 6: Final answer
    x = 20,895.77

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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.