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Finding the Fourth Proportional to 13,925.52, 19,221.52 and 8,957.52

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Solution

The fourth proportional to 13,925.52, 19,221.52 and 8,957.52 is: 12,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.52 : 19,221.52 = 8,957.52 : x
  2. Step 2: Convert to fraction form
    13,925.52/19,221.52 = 8,957.52/x
  3. Step 3: Cross multiply
    13,925.52x = 19,221.52 × 8,957.52
  4. Step 4: Simplify right side
    13,925.52x = 172,177,149.83
  5. Step 5: Solve for x
    x = 172,177,149.83/13,925.52
  6. Step 6: Final answer
    x = 12,364.15

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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.