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Finding the Fourth Proportional to 66,718.33, 92,070.52 and 36,503.31

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Solution

The fourth proportional to 66,718.33, 92,070.52 and 36,503.31 is: 50,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,718.33 : 92,070.52 = 36,503.31 : x
  2. Step 2: Convert to fraction form
    66,718.33/92,070.52 = 36,503.31/x
  3. Step 3: Cross multiply
    66,718.33x = 92,070.52 × 36,503.31
  4. Step 4: Simplify right side
    66,718.33x = 3,360,878,674.86
  5. Step 5: Solve for x
    x = 3,360,878,674.86/66,718.33
  6. Step 6: Final answer
    x = 50,374.14

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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.