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Finding the Fourth Proportional to 14,379.57, 19,854.62 and 14,149.93

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Solution

The fourth proportional to 14,379.57, 19,854.62 and 14,149.93 is: 19,537.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.57 : 19,854.62 = 14,149.93 : x
  2. Step 2: Convert to fraction form
    14,379.57/19,854.62 = 14,149.93/x
  3. Step 3: Cross multiply
    14,379.57x = 19,854.62 × 14,149.93
  4. Step 4: Simplify right side
    14,379.57x = 280,941,483.18
  5. Step 5: Solve for x
    x = 280,941,483.18/14,379.57
  6. Step 6: Final answer
    x = 19,537.54

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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.