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Finding the Fourth Proportional to 9,325.60, 12,866.88 and 5,548.48

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Solution

The fourth proportional to 9,325.60, 12,866.88 and 5,548.48 is: 7,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,325.60 : 12,866.88 = 5,548.48 : x
  2. Step 2: Convert to fraction form
    9,325.60/12,866.88 = 5,548.48/x
  3. Step 3: Cross multiply
    9,325.60x = 12,866.88 × 5,548.48
  4. Step 4: Simplify right side
    9,325.60x = 71,391,626.34
  5. Step 5: Solve for x
    x = 71,391,626.34/9,325.60
  6. Step 6: Final answer
    x = 7,655.45

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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.