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Finding the Fourth Proportional to 4,430.92, 6,613.95 and 3,905.47

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Solution

The fourth proportional to 4,430.92, 6,613.95 and 3,905.47 is: 5,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.92 : 6,613.95 = 3,905.47 : x
  2. Step 2: Convert to fraction form
    4,430.92/6,613.95 = 3,905.47/x
  3. Step 3: Cross multiply
    4,430.92x = 6,613.95 × 3,905.47
  4. Step 4: Simplify right side
    4,430.92x = 25,830,544.30
  5. Step 5: Solve for x
    x = 25,830,544.30/4,430.92
  6. Step 6: Final answer
    x = 5,829.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.