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Finding the Fourth Proportional to 25,967.84, 35,835.75 and 15,219.05

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Solution

The fourth proportional to 25,967.84, 35,835.75 and 15,219.05 is: 21,002.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,967.84 : 35,835.75 = 15,219.05 : x
  2. Step 2: Convert to fraction form
    25,967.84/35,835.75 = 15,219.05/x
  3. Step 3: Cross multiply
    25,967.84x = 35,835.75 × 15,219.05
  4. Step 4: Simplify right side
    25,967.84x = 545,385,891.86
  5. Step 5: Solve for x
    x = 545,385,891.86/25,967.84
  6. Step 6: Final answer
    x = 21,002.36

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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.