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Finding the Fourth Proportional to 14,615.66, 21,928.98 and 8,776.46

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Solution

The fourth proportional to 14,615.66, 21,928.98 and 8,776.46 is: 13,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.66 : 21,928.98 = 8,776.46 : x
  2. Step 2: Convert to fraction form
    14,615.66/21,928.98 = 8,776.46/x
  3. Step 3: Cross multiply
    14,615.66x = 21,928.98 × 8,776.46
  4. Step 4: Simplify right side
    14,615.66x = 192,458,815.81
  5. Step 5: Solve for x
    x = 192,458,815.81/14,615.66
  6. Step 6: Final answer
    x = 13,167.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.