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Finding the Fourth Proportional to 53,896.48, 80,881.71 and 18,836.17

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Solution

The fourth proportional to 53,896.48, 80,881.71 and 18,836.17 is: 28,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,896.48 : 80,881.71 = 18,836.17 : x
  2. Step 2: Convert to fraction form
    53,896.48/80,881.71 = 18,836.17/x
  3. Step 3: Cross multiply
    53,896.48x = 80,881.71 × 18,836.17
  4. Step 4: Simplify right side
    53,896.48x = 1,523,501,639.45
  5. Step 5: Solve for x
    x = 1,523,501,639.45/53,896.48
  6. Step 6: Final answer
    x = 28,267.18

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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.