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Finding the Fourth Proportional to 16,455.79, 22,708.93 and 8,902.14

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Solution

The fourth proportional to 16,455.79, 22,708.93 and 8,902.14 is: 12,284.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,455.79 : 22,708.93 = 8,902.14 : x
  2. Step 2: Convert to fraction form
    16,455.79/22,708.93 = 8,902.14/x
  3. Step 3: Cross multiply
    16,455.79x = 22,708.93 × 8,902.14
  4. Step 4: Simplify right side
    16,455.79x = 202,158,074.11
  5. Step 5: Solve for x
    x = 202,158,074.11/16,455.79
  6. Step 6: Final answer
    x = 12,284.92

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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.