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Finding the Fourth Proportional to 9,438.37, 13,005.75 and 7,300.92

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Solution

The fourth proportional to 9,438.37, 13,005.75 and 7,300.92 is: 10,060.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.37 : 13,005.75 = 7,300.92 : x
  2. Step 2: Convert to fraction form
    9,438.37/13,005.75 = 7,300.92/x
  3. Step 3: Cross multiply
    9,438.37x = 13,005.75 × 7,300.92
  4. Step 4: Simplify right side
    9,438.37x = 94,953,902.21
  5. Step 5: Solve for x
    x = 94,953,902.21/9,438.37
  6. Step 6: Final answer
    x = 10,060.41

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Half scale
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Double scale
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Similar ratio
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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.