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Finding the Fourth Proportional to 12,669.70, 17,482.66 and 7,003.68

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Solution

The fourth proportional to 12,669.70, 17,482.66 and 7,003.68 is: 9,664.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.70 : 17,482.66 = 7,003.68 : x
  2. Step 2: Convert to fraction form
    12,669.70/17,482.66 = 7,003.68/x
  3. Step 3: Cross multiply
    12,669.70x = 17,482.66 × 7,003.68
  4. Step 4: Simplify right side
    12,669.70x = 122,442,956.19
  5. Step 5: Solve for x
    x = 122,442,956.19/12,669.70
  6. Step 6: Final answer
    x = 9,664.23

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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.