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Finding the Fourth Proportional to 9,009.60, 12,431.73 and 5,030.73

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Solution

The fourth proportional to 9,009.60, 12,431.73 and 5,030.73 is: 6,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.60 : 12,431.73 = 5,030.73 : x
  2. Step 2: Convert to fraction form
    9,009.60/12,431.73 = 5,030.73/x
  3. Step 3: Cross multiply
    9,009.60x = 12,431.73 × 5,030.73
  4. Step 4: Simplify right side
    9,009.60x = 62,540,677.06
  5. Step 5: Solve for x
    x = 62,540,677.06/9,009.60
  6. Step 6: Final answer
    x = 6,941.56

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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.