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Finding the Fourth Proportional to 66,017, 98,981.76 and 23,891.60

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Solution

The fourth proportional to 66,017, 98,981.76 and 23,891.60 is: 35,821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,017 : 98,981.76 = 23,891.60 : x
  2. Step 2: Convert to fraction form
    66,017/98,981.76 = 23,891.60/x
  3. Step 3: Cross multiply
    66,017x = 98,981.76 × 23,891.60
  4. Step 4: Simplify right side
    66,017x = 2,364,832,617.22
  5. Step 5: Solve for x
    x = 2,364,832,617.22/66,017
  6. Step 6: Final answer
    x = 35,821.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.