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Finding the Fourth Proportional to 55,798.95, 77,015.84 and 31,939.41

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Solution

The fourth proportional to 55,798.95, 77,015.84 and 31,939.41 is: 44,083.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,798.95 : 77,015.84 = 31,939.41 : x
  2. Step 2: Convert to fraction form
    55,798.95/77,015.84 = 31,939.41/x
  3. Step 3: Cross multiply
    55,798.95x = 77,015.84 × 31,939.41
  4. Step 4: Simplify right side
    55,798.95x = 2,459,840,330.56
  5. Step 5: Solve for x
    x = 2,459,840,330.56/55,798.95
  6. Step 6: Final answer
    x = 44,083.99

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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.