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Finding the Fourth Proportional to 12,755.29, 17,602.22 and 7,089.95

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Solution

The fourth proportional to 12,755.29, 17,602.22 and 7,089.95 is: 9,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.29 : 17,602.22 = 7,089.95 : x
  2. Step 2: Convert to fraction form
    12,755.29/17,602.22 = 7,089.95/x
  3. Step 3: Cross multiply
    12,755.29x = 17,602.22 × 7,089.95
  4. Step 4: Simplify right side
    12,755.29x = 124,798,736.23
  5. Step 5: Solve for x
    x = 124,798,736.23/12,755.29
  6. Step 6: Final answer
    x = 9,784.08

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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.