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Finding the Fourth Proportional to 67,618.73, 101,420.25 and 17,703.63

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Solution

The fourth proportional to 67,618.73, 101,420.25 and 17,703.63 is: 26,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,618.73 : 101,420.25 = 17,703.63 : x
  2. Step 2: Convert to fraction form
    67,618.73/101,420.25 = 17,703.63/x
  3. Step 3: Cross multiply
    67,618.73x = 101,420.25 × 17,703.63
  4. Step 4: Simplify right side
    67,618.73x = 1,795,506,580.51
  5. Step 5: Solve for x
    x = 1,795,506,580.51/67,618.73
  6. Step 6: Final answer
    x = 26,553.39

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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.