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Finding the Fourth Proportional to 66,095.66, 91,212.08 and 35,880.98

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Solution

The fourth proportional to 66,095.66, 91,212.08 and 35,880.98 is: 49,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,095.66 : 91,212.08 = 35,880.98 : x
  2. Step 2: Convert to fraction form
    66,095.66/91,212.08 = 35,880.98/x
  3. Step 3: Cross multiply
    66,095.66x = 91,212.08 × 35,880.98
  4. Step 4: Simplify right side
    66,095.66x = 3,272,778,182.77
  5. Step 5: Solve for x
    x = 3,272,778,182.77/66,095.66
  6. Step 6: Final answer
    x = 49,515.78

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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.