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Finding the Fourth Proportional to 66,756.81, 92,124.59 and 36,948.81

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Solution

The fourth proportional to 66,756.81, 92,124.59 and 36,948.81 is: 50,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.81 : 92,124.59 = 36,948.81 : x
  2. Step 2: Convert to fraction form
    66,756.81/92,124.59 = 36,948.81/x
  3. Step 3: Cross multiply
    66,756.81x = 92,124.59 × 36,948.81
  4. Step 4: Simplify right side
    66,756.81x = 3,403,893,787.49
  5. Step 5: Solve for x
    x = 3,403,893,787.49/66,756.81
  6. Step 6: Final answer
    x = 50,989.46

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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.