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Finding the Fourth Proportional to 53,696.21, 74,070.90 and 49,894.92

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Solution

The fourth proportional to 53,696.21, 74,070.90 and 49,894.92 is: 68,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,696.21 : 74,070.90 = 49,894.92 : x
  2. Step 2: Convert to fraction form
    53,696.21/74,070.90 = 49,894.92/x
  3. Step 3: Cross multiply
    53,696.21x = 74,070.90 × 49,894.92
  4. Step 4: Simplify right side
    53,696.21x = 3,695,761,629.83
  5. Step 5: Solve for x
    x = 3,695,761,629.83/53,696.21
  6. Step 6: Final answer
    x = 68,827.24

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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.