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Finding the Fourth Proportional to 25,558.40, 35,270.52 and 14,380.40

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Solution

The fourth proportional to 25,558.40, 35,270.52 and 14,380.40 is: 19,844.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,558.40 : 35,270.52 = 14,380.40 : x
  2. Step 2: Convert to fraction form
    25,558.40/35,270.52 = 14,380.40/x
  3. Step 3: Cross multiply
    25,558.40x = 35,270.52 × 14,380.40
  4. Step 4: Simplify right side
    25,558.40x = 507,204,185.81
  5. Step 5: Solve for x
    x = 507,204,185.81/25,558.40
  6. Step 6: Final answer
    x = 19,844.91

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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.