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Finding the Fourth Proportional to 13,362.01, 18,424.49 and 9,994.03

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Solution

The fourth proportional to 13,362.01, 18,424.49 and 9,994.03 is: 13,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.01 : 18,424.49 = 9,994.03 : x
  2. Step 2: Convert to fraction form
    13,362.01/18,424.49 = 9,994.03/x
  3. Step 3: Cross multiply
    13,362.01x = 18,424.49 × 9,994.03
  4. Step 4: Simplify right side
    13,362.01x = 184,134,941.51
  5. Step 5: Solve for x
    x = 184,134,941.51/13,362.01
  6. Step 6: Final answer
    x = 13,780.48

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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.