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Finding the Fourth Proportional to 66,352.10, 91,566.48 and 36,137.55

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Solution

The fourth proportional to 66,352.10, 91,566.48 and 36,137.55 is: 49,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,352.10 : 91,566.48 = 36,137.55 : x
  2. Step 2: Convert to fraction form
    66,352.10/91,566.48 = 36,137.55/x
  3. Step 3: Cross multiply
    66,352.10x = 91,566.48 × 36,137.55
  4. Step 4: Simplify right side
    66,352.10x = 3,308,988,009.88
  5. Step 5: Solve for x
    x = 3,308,988,009.88/66,352.10
  6. Step 6: Final answer
    x = 49,870.14

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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.