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Finding the Fourth Proportional to 13,897.71, 19,181.48 and 8,594.91

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Solution

The fourth proportional to 13,897.71, 19,181.48 and 8,594.91 is: 11,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.71 : 19,181.48 = 8,594.91 : x
  2. Step 2: Convert to fraction form
    13,897.71/19,181.48 = 8,594.91/x
  3. Step 3: Cross multiply
    13,897.71x = 19,181.48 × 8,594.91
  4. Step 4: Simplify right side
    13,897.71x = 164,863,051.29
  5. Step 5: Solve for x
    x = 164,863,051.29/13,897.71
  6. Step 6: Final answer
    x = 11,862.61

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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.