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Finding the Fourth Proportional to 8,482.19, 11,705.51 and 4,705.43

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Solution

The fourth proportional to 8,482.19, 11,705.51 and 4,705.43 is: 6,493.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.19 : 11,705.51 = 4,705.43 : x
  2. Step 2: Convert to fraction form
    8,482.19/11,705.51 = 4,705.43/x
  3. Step 3: Cross multiply
    8,482.19x = 11,705.51 × 4,705.43
  4. Step 4: Simplify right side
    8,482.19x = 55,079,411.16
  5. Step 5: Solve for x
    x = 55,079,411.16/8,482.19
  6. Step 6: Final answer
    x = 6,493.54

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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.