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Finding the Fourth Proportional to 12,792.51, 17,652.47 and 9,437.19

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Solution

The fourth proportional to 12,792.51, 17,652.47 and 9,437.19 is: 13,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.51 : 17,652.47 = 9,437.19 : x
  2. Step 2: Convert to fraction form
    12,792.51/17,652.47 = 9,437.19/x
  3. Step 3: Cross multiply
    12,792.51x = 17,652.47 × 9,437.19
  4. Step 4: Simplify right side
    12,792.51x = 166,589,622.04
  5. Step 5: Solve for x
    x = 166,589,622.04/12,792.51
  6. Step 6: Final answer
    x = 13,022.43

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Half scale
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Double scale
Find fourth proportional to 12,793.51, 17,653.84 and 9,438.19
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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.