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Finding the Fourth Proportional to 55,694.97, 76,851.95 and 31,823.19

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Solution

The fourth proportional to 55,694.97, 76,851.95 and 31,823.19 is: 43,911.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,694.97 : 76,851.95 = 31,823.19 : x
  2. Step 2: Convert to fraction form
    55,694.97/76,851.95 = 31,823.19/x
  3. Step 3: Cross multiply
    55,694.97x = 76,851.95 × 31,823.19
  4. Step 4: Simplify right side
    55,694.97x = 2,445,674,206.72
  5. Step 5: Solve for x
    x = 2,445,674,206.72/55,694.97
  6. Step 6: Final answer
    x = 43,911.94

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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.