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Finding the Fourth Proportional to 12,362.01, 18,534.78 and 6,424.29

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Solution

The fourth proportional to 12,362.01, 18,534.78 and 6,424.29 is: 9,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.01 : 18,534.78 = 6,424.29 : x
  2. Step 2: Convert to fraction form
    12,362.01/18,534.78 = 6,424.29/x
  3. Step 3: Cross multiply
    12,362.01x = 18,534.78 × 6,424.29
  4. Step 4: Simplify right side
    12,362.01x = 119,072,801.81
  5. Step 5: Solve for x
    x = 119,072,801.81/12,362.01
  6. Step 6: Final answer
    x = 9,632.16

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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.