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Finding the Fourth Proportional to 14,653.76, 21,981.65 and 5,888.68

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Solution

The fourth proportional to 14,653.76, 21,981.65 and 5,888.68 is: 8,833.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.76 : 21,981.65 = 5,888.68 : x
  2. Step 2: Convert to fraction form
    14,653.76/21,981.65 = 5,888.68/x
  3. Step 3: Cross multiply
    14,653.76x = 21,981.65 × 5,888.68
  4. Step 4: Simplify right side
    14,653.76x = 129,442,902.72
  5. Step 5: Solve for x
    x = 129,442,902.72/14,653.76
  6. Step 6: Final answer
    x = 8,833.43

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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.