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Finding the Fourth Proportional to 66,602.63, 99,418.09 and 58,194.98

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Solution

The fourth proportional to 66,602.63, 99,418.09 and 58,194.98 is: 86,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,602.63 : 99,418.09 = 58,194.98 : x
  2. Step 2: Convert to fraction form
    66,602.63/99,418.09 = 58,194.98/x
  3. Step 3: Cross multiply
    66,602.63x = 99,418.09 × 58,194.98
  4. Step 4: Simplify right side
    66,602.63x = 5,785,633,759.19
  5. Step 5: Solve for x
    x = 5,785,633,759.19/66,602.63
  6. Step 6: Final answer
    x = 86,867.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.