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Finding the Fourth Proportional to 53,959.91, 80,893.72 and 20,703.84

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Solution

The fourth proportional to 53,959.91, 80,893.72 and 20,703.84 is: 31,038.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,959.91 : 80,893.72 = 20,703.84 : x
  2. Step 2: Convert to fraction form
    53,959.91/80,893.72 = 20,703.84/x
  3. Step 3: Cross multiply
    53,959.91x = 80,893.72 × 20,703.84
  4. Step 4: Simplify right side
    53,959.91x = 1,674,810,887.48
  5. Step 5: Solve for x
    x = 1,674,810,887.48/53,959.91
  6. Step 6: Final answer
    x = 31,038.06

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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.