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Finding the Fourth Proportional to 66,338.92, 91,549.98 and 36,124.76

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Solution

The fourth proportional to 66,338.92, 91,549.98 and 36,124.76 is: 49,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,338.92 : 91,549.98 = 36,124.76 : x
  2. Step 2: Convert to fraction form
    66,338.92/91,549.98 = 36,124.76/x
  3. Step 3: Cross multiply
    66,338.92x = 91,549.98 × 36,124.76
  4. Step 4: Simplify right side
    66,338.92x = 3,307,221,055.50
  5. Step 5: Solve for x
    x = 3,307,221,055.50/66,338.92
  6. Step 6: Final answer
    x = 49,853.41

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Double scale
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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.