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Finding the Fourth Proportional to 13,364.10, 20,030.64 and 5,038.79

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Solution

The fourth proportional to 13,364.10, 20,030.64 and 5,038.79 is: 7,552.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.10 : 20,030.64 = 5,038.79 : x
  2. Step 2: Convert to fraction form
    13,364.10/20,030.64 = 5,038.79/x
  3. Step 3: Cross multiply
    13,364.10x = 20,030.64 × 5,038.79
  4. Step 4: Simplify right side
    13,364.10x = 100,930,088.37
  5. Step 5: Solve for x
    x = 100,930,088.37/13,364.10
  6. Step 6: Final answer
    x = 7,552.33

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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.