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Finding the Fourth Proportional to 15,902.58, 21,946.24 and 8,829

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Solution

The fourth proportional to 15,902.58, 21,946.24 and 8,829 is: 12,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,902.58 : 21,946.24 = 8,829 : x
  2. Step 2: Convert to fraction form
    15,902.58/21,946.24 = 8,829/x
  3. Step 3: Cross multiply
    15,902.58x = 21,946.24 × 8,829
  4. Step 4: Simplify right side
    15,902.58x = 193,763,364.00
  5. Step 5: Solve for x
    x = 193,763,364.00/15,902.58
  6. Step 6: Final answer
    x = 12,184.40

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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.