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Finding the Fourth Proportional to 13,124.68, 19,689.94 and 4,804.50

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Solution

The fourth proportional to 13,124.68, 19,689.94 and 4,804.50 is: 7,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.68 : 19,689.94 = 4,804.50 : x
  2. Step 2: Convert to fraction form
    13,124.68/19,689.94 = 4,804.50/x
  3. Step 3: Cross multiply
    13,124.68x = 19,689.94 × 4,804.50
  4. Step 4: Simplify right side
    13,124.68x = 94,600,316.73
  5. Step 5: Solve for x
    x = 94,600,316.73/13,124.68
  6. Step 6: Final answer
    x = 7,207.82

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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.