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Finding the Fourth Proportional to 83,955.84, 115,817.74 and 62,376.83

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Solution

The fourth proportional to 83,955.84, 115,817.74 and 62,376.83 is: 86,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,955.84 : 115,817.74 = 62,376.83 : x
  2. Step 2: Convert to fraction form
    83,955.84/115,817.74 = 62,376.83/x
  3. Step 3: Cross multiply
    83,955.84x = 115,817.74 × 62,376.83
  4. Step 4: Simplify right side
    83,955.84x = 7,224,343,478.96
  5. Step 5: Solve for x
    x = 7,224,343,478.96/83,955.84
  6. Step 6: Final answer
    x = 86,049.33

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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.