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Finding the Fourth Proportional to 14,618.66, 21,933.48 and 8,779.46

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Solution

The fourth proportional to 14,618.66, 21,933.48 and 8,779.46 is: 13,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.66 : 21,933.48 = 8,779.46 : x
  2. Step 2: Convert to fraction form
    14,618.66/21,933.48 = 8,779.46/x
  3. Step 3: Cross multiply
    14,618.66x = 21,933.48 × 8,779.46
  4. Step 4: Simplify right side
    14,618.66x = 192,564,110.32
  5. Step 5: Solve for x
    x = 192,564,110.32/14,618.66
  6. Step 6: Final answer
    x = 13,172.49

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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.