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Finding the Fourth Proportional to 9,438.66, 13,018.98 and 7,195.32

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Solution

The fourth proportional to 9,438.66, 13,018.98 and 7,195.32 is: 9,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.66 : 13,018.98 = 7,195.32 : x
  2. Step 2: Convert to fraction form
    9,438.66/13,018.98 = 7,195.32/x
  3. Step 3: Cross multiply
    9,438.66x = 13,018.98 × 7,195.32
  4. Step 4: Simplify right side
    9,438.66x = 93,675,727.17
  5. Step 5: Solve for x
    x = 93,675,727.17/9,438.66
  6. Step 6: Final answer
    x = 9,924.68

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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.