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Finding the Fourth Proportional to 14,038.92, 19,374.12 and 7,751.16

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Solution

The fourth proportional to 14,038.92, 19,374.12 and 7,751.16 is: 10,696.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.92 : 19,374.12 = 7,751.16 : x
  2. Step 2: Convert to fraction form
    14,038.92/19,374.12 = 7,751.16/x
  3. Step 3: Cross multiply
    14,038.92x = 19,374.12 × 7,751.16
  4. Step 4: Simplify right side
    14,038.92x = 150,171,903.98
  5. Step 5: Solve for x
    x = 150,171,903.98/14,038.92
  6. Step 6: Final answer
    x = 10,696.83

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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.