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Finding the Fourth Proportional to 50,919.63, 76,384.65 and 17,639.64

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Solution

The fourth proportional to 50,919.63, 76,384.65 and 17,639.64 is: 26,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,919.63 : 76,384.65 = 17,639.64 : x
  2. Step 2: Convert to fraction form
    50,919.63/76,384.65 = 17,639.64/x
  3. Step 3: Cross multiply
    50,919.63x = 76,384.65 × 17,639.64
  4. Step 4: Simplify right side
    50,919.63x = 1,347,397,727.53
  5. Step 5: Solve for x
    x = 1,347,397,727.53/50,919.63
  6. Step 6: Final answer
    x = 26,461.26

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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.