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Finding the Fourth Proportional to 18,597.36, 25,664.40 and 10,641.12

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Solution

The fourth proportional to 18,597.36, 25,664.40 and 10,641.12 is: 14,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,597.36 : 25,664.40 = 10,641.12 : x
  2. Step 2: Convert to fraction form
    18,597.36/25,664.40 = 10,641.12/x
  3. Step 3: Cross multiply
    18,597.36x = 25,664.40 × 10,641.12
  4. Step 4: Simplify right side
    18,597.36x = 273,097,960.13
  5. Step 5: Solve for x
    x = 273,097,960.13/18,597.36
  6. Step 6: Final answer
    x = 14,684.77

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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.