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Finding the Fourth Proportional to 12,362.51, 18,543.51 and 3,002.58

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Solution

The fourth proportional to 12,362.51, 18,543.51 and 3,002.58 is: 4,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.51 : 18,543.51 = 3,002.58 : x
  2. Step 2: Convert to fraction form
    12,362.51/18,543.51 = 3,002.58/x
  3. Step 3: Cross multiply
    12,362.51x = 18,543.51 × 3,002.58
  4. Step 4: Simplify right side
    12,362.51x = 55,678,372.26
  5. Step 5: Solve for x
    x = 55,678,372.26/12,362.51
  6. Step 6: Final answer
    x = 4,503.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.