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Finding the Fourth Proportional to 9,301.01, 12,860.64 and 9,150.77

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Solution

The fourth proportional to 9,301.01, 12,860.64 and 9,150.77 is: 12,652.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,301.01 : 12,860.64 = 9,150.77 : x
  2. Step 2: Convert to fraction form
    9,301.01/12,860.64 = 9,150.77/x
  3. Step 3: Cross multiply
    9,301.01x = 12,860.64 × 9,150.77
  4. Step 4: Simplify right side
    9,301.01x = 117,684,790.84
  5. Step 5: Solve for x
    x = 117,684,790.84/9,301.01
  6. Step 6: Final answer
    x = 12,652.91

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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.