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Finding the Fourth Proportional to 66,184.85, 91,335.80 and 35,970.17

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Solution

The fourth proportional to 66,184.85, 91,335.80 and 35,970.17 is: 49,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,184.85 : 91,335.80 = 35,970.17 : x
  2. Step 2: Convert to fraction form
    66,184.85/91,335.80 = 35,970.17/x
  3. Step 3: Cross multiply
    66,184.85x = 91,335.80 × 35,970.17
  4. Step 4: Simplify right side
    66,184.85x = 3,285,364,253.09
  5. Step 5: Solve for x
    x = 3,285,364,253.09/66,184.85
  6. Step 6: Final answer
    x = 49,639.22

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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.