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Finding the Fourth Proportional to 66,510.54, 91,786.32 and 36,296.46

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Solution

The fourth proportional to 66,510.54, 91,786.32 and 36,296.46 is: 50,090.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.54 : 91,786.32 = 36,296.46 : x
  2. Step 2: Convert to fraction form
    66,510.54/91,786.32 = 36,296.46/x
  3. Step 3: Cross multiply
    66,510.54x = 91,786.32 × 36,296.46
  4. Step 4: Simplify right side
    66,510.54x = 3,331,518,492.43
  5. Step 5: Solve for x
    x = 3,331,518,492.43/66,510.54
  6. Step 6: Final answer
    x = 50,090.08

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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.