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Finding the Fourth Proportional to 8,364.74, 11,543.90 and 4,828.19

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Solution

The fourth proportional to 8,364.74, 11,543.90 and 4,828.19 is: 6,663.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.74 : 11,543.90 = 4,828.19 : x
  2. Step 2: Convert to fraction form
    8,364.74/11,543.90 = 4,828.19/x
  3. Step 3: Cross multiply
    8,364.74x = 11,543.90 × 4,828.19
  4. Step 4: Simplify right side
    8,364.74x = 55,736,060.68
  5. Step 5: Solve for x
    x = 55,736,060.68/8,364.74
  6. Step 6: Final answer
    x = 6,663.22

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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.