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Finding the Fourth Proportional to 14,436.21, 19,922.86 and 8,062.80

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Solution

The fourth proportional to 14,436.21, 19,922.86 and 8,062.80 is: 11,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436.21 : 19,922.86 = 8,062.80 : x
  2. Step 2: Convert to fraction form
    14,436.21/19,922.86 = 8,062.80/x
  3. Step 3: Cross multiply
    14,436.21x = 19,922.86 × 8,062.80
  4. Step 4: Simplify right side
    14,436.21x = 160,634,035.61
  5. Step 5: Solve for x
    x = 160,634,035.61/14,436.21
  6. Step 6: Final answer
    x = 11,127.16

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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.