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Finding the Fourth Proportional to 7,480.44, 10,323.08 and 4,123.38

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Solution

The fourth proportional to 7,480.44, 10,323.08 and 4,123.38 is: 5,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.44 : 10,323.08 = 4,123.38 : x
  2. Step 2: Convert to fraction form
    7,480.44/10,323.08 = 4,123.38/x
  3. Step 3: Cross multiply
    7,480.44x = 10,323.08 × 4,123.38
  4. Step 4: Simplify right side
    7,480.44x = 42,565,981.61
  5. Step 5: Solve for x
    x = 42,565,981.61/7,480.44
  6. Step 6: Final answer
    x = 5,690.30

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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.