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Finding the Fourth Proportional to 66,903.98, 92,323.96 and 38,217.98

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Solution

The fourth proportional to 66,903.98, 92,323.96 and 38,217.98 is: 52,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,903.98 : 92,323.96 = 38,217.98 : x
  2. Step 2: Convert to fraction form
    66,903.98/92,323.96 = 38,217.98/x
  3. Step 3: Cross multiply
    66,903.98x = 92,323.96 × 38,217.98
  4. Step 4: Simplify right side
    66,903.98x = 3,528,435,392.07
  5. Step 5: Solve for x
    x = 3,528,435,392.07/66,903.98
  6. Step 6: Final answer
    x = 52,738.79

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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.