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Finding the Fourth Proportional to 13,897.92, 19,176.12 and 7,927.32

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Solution

The fourth proportional to 13,897.92, 19,176.12 and 7,927.32 is: 10,937.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.92 : 19,176.12 = 7,927.32 : x
  2. Step 2: Convert to fraction form
    13,897.92/19,176.12 = 7,927.32/x
  3. Step 3: Cross multiply
    13,897.92x = 19,176.12 × 7,927.32
  4. Step 4: Simplify right side
    13,897.92x = 152,015,239.60
  5. Step 5: Solve for x
    x = 152,015,239.60/13,897.92
  6. Step 6: Final answer
    x = 10,937.98

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Similar ratio
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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.