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Finding the Fourth Proportional to 66,308.50, 91,506.90 and 36,094.69

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Solution

The fourth proportional to 66,308.50, 91,506.90 and 36,094.69 is: 49,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308.50 : 91,506.90 = 36,094.69 : x
  2. Step 2: Convert to fraction form
    66,308.50/91,506.90 = 36,094.69/x
  3. Step 3: Cross multiply
    66,308.50x = 91,506.90 × 36,094.69
  4. Step 4: Simplify right side
    66,308.50x = 3,302,913,235.07
  5. Step 5: Solve for x
    x = 3,302,913,235.07/66,308.50
  6. Step 6: Final answer
    x = 49,811.31

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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.