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Finding the Fourth Proportional to 8,900.83, 12,283.65 and 4,922.32

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Solution

The fourth proportional to 8,900.83, 12,283.65 and 4,922.32 is: 6,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.83 : 12,283.65 = 4,922.32 : x
  2. Step 2: Convert to fraction form
    8,900.83/12,283.65 = 4,922.32/x
  3. Step 3: Cross multiply
    8,900.83x = 12,283.65 × 4,922.32
  4. Step 4: Simplify right side
    8,900.83x = 60,464,056.07
  5. Step 5: Solve for x
    x = 60,464,056.07/8,900.83
  6. Step 6: Final answer
    x = 6,793.08

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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.