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Finding the Fourth Proportional to 45,894.92, 68,829.86 and 12,607.07

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Solution

The fourth proportional to 45,894.92, 68,829.86 and 12,607.07 is: 18,907.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,894.92 : 68,829.86 = 12,607.07 : x
  2. Step 2: Convert to fraction form
    45,894.92/68,829.86 = 12,607.07/x
  3. Step 3: Cross multiply
    45,894.92x = 68,829.86 × 12,607.07
  4. Step 4: Simplify right side
    45,894.92x = 867,742,455.93
  5. Step 5: Solve for x
    x = 867,742,455.93/45,894.92
  6. Step 6: Final answer
    x = 18,907.16

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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.