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Finding the Fourth Proportional to 8,957.04, 12,349.62 and 5,764.92

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Solution

The fourth proportional to 8,957.04, 12,349.62 and 5,764.92 is: 7,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.04 : 12,349.62 = 5,764.92 : x
  2. Step 2: Convert to fraction form
    8,957.04/12,349.62 = 5,764.92/x
  3. Step 3: Cross multiply
    8,957.04x = 12,349.62 × 5,764.92
  4. Step 4: Simplify right side
    8,957.04x = 71,194,571.33
  5. Step 5: Solve for x
    x = 71,194,571.33/8,957.04
  6. Step 6: Final answer
    x = 7,948.45

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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.