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Finding the Fourth Proportional to 25,515.84, 35,213.22 and 14,904.84

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Solution

The fourth proportional to 25,515.84, 35,213.22 and 14,904.84 is: 20,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.84 : 35,213.22 = 14,904.84 : x
  2. Step 2: Convert to fraction form
    25,515.84/35,213.22 = 14,904.84/x
  3. Step 3: Cross multiply
    25,515.84x = 35,213.22 × 14,904.84
  4. Step 4: Simplify right side
    25,515.84x = 524,847,409.98
  5. Step 5: Solve for x
    x = 524,847,409.98/25,515.84
  6. Step 6: Final answer
    x = 20,569.47

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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.