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Finding the Fourth Proportional to 14,367.12, 21,506.12 and 7,776.96

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Solution

The fourth proportional to 14,367.12, 21,506.12 and 7,776.96 is: 11,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,367.12 : 21,506.12 = 7,776.96 : x
  2. Step 2: Convert to fraction form
    14,367.12/21,506.12 = 7,776.96/x
  3. Step 3: Cross multiply
    14,367.12x = 21,506.12 × 7,776.96
  4. Step 4: Simplify right side
    14,367.12x = 167,252,235.00
  5. Step 5: Solve for x
    x = 167,252,235.00/14,367.12
  6. Step 6: Final answer
    x = 11,641.32

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1.5x scale

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.