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Finding the Fourth Proportional to 25,535, 35,238.30 and 14,357

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Solution

The fourth proportional to 25,535, 35,238.30 and 14,357 is: 19,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,535 : 35,238.30 = 14,357 : x
  2. Step 2: Convert to fraction form
    25,535/35,238.30 = 14,357/x
  3. Step 3: Cross multiply
    25,535x = 35,238.30 × 14,357
  4. Step 4: Simplify right side
    25,535x = 505,916,273.10
  5. Step 5: Solve for x
    x = 505,916,273.10/25,535
  6. Step 6: Final answer
    x = 19,812.66

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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.