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Finding the Fourth Proportional to 13,636.16, 18,827.36 and 8,927.04

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Solution

The fourth proportional to 13,636.16, 18,827.36 and 8,927.04 is: 12,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.16 : 18,827.36 = 8,927.04 : x
  2. Step 2: Convert to fraction form
    13,636.16/18,827.36 = 8,927.04/x
  3. Step 3: Cross multiply
    13,636.16x = 18,827.36 × 8,927.04
  4. Step 4: Simplify right side
    13,636.16x = 168,072,595.81
  5. Step 5: Solve for x
    x = 168,072,595.81/13,636.16
  6. Step 6: Final answer
    x = 12,325.51

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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.