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Finding the Fourth Proportional to 55,215.94, 82,798.95 and 15,763.66

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Solution

The fourth proportional to 55,215.94, 82,798.95 and 15,763.66 is: 23,638.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.94 : 82,798.95 = 15,763.66 : x
  2. Step 2: Convert to fraction form
    55,215.94/82,798.95 = 15,763.66/x
  3. Step 3: Cross multiply
    55,215.94x = 82,798.95 × 15,763.66
  4. Step 4: Simplify right side
    55,215.94x = 1,305,214,496.16
  5. Step 5: Solve for x
    x = 1,305,214,496.16/55,215.94
  6. Step 6: Final answer
    x = 23,638.36

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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.