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Finding the Fourth Proportional to 53,694.70, 74,068.83 and 49,893.42

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Solution

The fourth proportional to 53,694.70, 74,068.83 and 49,893.42 is: 68,825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,694.70 : 74,068.83 = 49,893.42 : x
  2. Step 2: Convert to fraction form
    53,694.70/74,068.83 = 49,893.42/x
  3. Step 3: Cross multiply
    53,694.70x = 74,068.83 × 49,893.42
  4. Step 4: Simplify right side
    53,694.70x = 3,695,547,105.22
  5. Step 5: Solve for x
    x = 3,695,547,105.22/53,694.70
  6. Step 6: Final answer
    x = 68,825.18

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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.