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Finding the Fourth Proportional to 36,048.57, 54,071.21 and 12,358.21

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Solution

The fourth proportional to 36,048.57, 54,071.21 and 12,358.21 is: 18,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,048.57 : 54,071.21 = 12,358.21 : x
  2. Step 2: Convert to fraction form
    36,048.57/54,071.21 = 12,358.21/x
  3. Step 3: Cross multiply
    36,048.57x = 54,071.21 × 12,358.21
  4. Step 4: Simplify right side
    36,048.57x = 668,223,368.13
  5. Step 5: Solve for x
    x = 668,223,368.13/36,048.57
  6. Step 6: Final answer
    x = 18,536.75

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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.