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Finding the Fourth Proportional to 13,393.51, 18,482.63 and 7,343.62

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Solution

The fourth proportional to 13,393.51, 18,482.63 and 7,343.62 is: 10,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.51 : 18,482.63 = 7,343.62 : x
  2. Step 2: Convert to fraction form
    13,393.51/18,482.63 = 7,343.62/x
  3. Step 3: Cross multiply
    13,393.51x = 18,482.63 × 7,343.62
  4. Step 4: Simplify right side
    13,393.51x = 135,729,411.32
  5. Step 5: Solve for x
    x = 135,729,411.32/13,393.51
  6. Step 6: Final answer
    x = 10,133.97

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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.