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Finding the Fourth Proportional to 19,185.96, 26,486.96 and 13,460.94

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Solution

The fourth proportional to 19,185.96, 26,486.96 and 13,460.94 is: 18,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.96 : 26,486.96 = 13,460.94 : x
  2. Step 2: Convert to fraction form
    19,185.96/26,486.96 = 13,460.94/x
  3. Step 3: Cross multiply
    19,185.96x = 26,486.96 × 13,460.94
  4. Step 4: Simplify right side
    19,185.96x = 356,539,312.04
  5. Step 5: Solve for x
    x = 356,539,312.04/19,185.96
  6. Step 6: Final answer
    x = 18,583.34

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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.