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Finding the Fourth Proportional to 14,607.36, 21,903.36 and 12,564.48

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Solution

The fourth proportional to 14,607.36, 21,903.36 and 12,564.48 is: 18,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,607.36 : 21,903.36 = 12,564.48 : x
  2. Step 2: Convert to fraction form
    14,607.36/21,903.36 = 12,564.48/x
  3. Step 3: Cross multiply
    14,607.36x = 21,903.36 × 12,564.48
  4. Step 4: Simplify right side
    14,607.36x = 275,204,328.65
  5. Step 5: Solve for x
    x = 275,204,328.65/14,607.36
  6. Step 6: Final answer
    x = 18,840.11

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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.