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Finding the Fourth Proportional to 58,361.04, 87,555.42 and 18,918.18

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Solution

The fourth proportional to 58,361.04, 87,555.42 and 18,918.18 is: 28,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,361.04 : 87,555.42 = 18,918.18 : x
  2. Step 2: Convert to fraction form
    58,361.04/87,555.42 = 18,918.18/x
  3. Step 3: Cross multiply
    58,361.04x = 87,555.42 × 18,918.18
  4. Step 4: Simplify right side
    58,361.04x = 1,656,389,195.54
  5. Step 5: Solve for x
    x = 1,656,389,195.54/58,361.04
  6. Step 6: Final answer
    x = 28,381.76

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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.