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Finding the Fourth Proportional to 13,569.16, 20,355.78 and 4,804.16

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Solution

The fourth proportional to 13,569.16, 20,355.78 and 4,804.16 is: 7,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.16 : 20,355.78 = 4,804.16 : x
  2. Step 2: Convert to fraction form
    13,569.16/20,355.78 = 4,804.16/x
  3. Step 3: Cross multiply
    13,569.16x = 20,355.78 × 4,804.16
  4. Step 4: Simplify right side
    13,569.16x = 97,792,424.04
  5. Step 5: Solve for x
    x = 97,792,424.04/13,569.16
  6. Step 6: Final answer
    x = 7,206.96

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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.