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Finding the Fourth Proportional to 66,696.77, 92,044.49 and 38,411.57

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Solution

The fourth proportional to 66,696.77, 92,044.49 and 38,411.57 is: 53,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,696.77 : 92,044.49 = 38,411.57 : x
  2. Step 2: Convert to fraction form
    66,696.77/92,044.49 = 38,411.57/x
  3. Step 3: Cross multiply
    66,696.77x = 92,044.49 × 38,411.57
  4. Step 4: Simplify right side
    66,696.77x = 3,535,572,718.47
  5. Step 5: Solve for x
    x = 3,535,572,718.47/66,696.77
  6. Step 6: Final answer
    x = 53,009.66

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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.