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Finding the Fourth Proportional to 15,063.81, 20,785.53 and 10,035.54

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Solution

The fourth proportional to 15,063.81, 20,785.53 and 10,035.54 is: 13,847.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,063.81 : 20,785.53 = 10,035.54 : x
  2. Step 2: Convert to fraction form
    15,063.81/20,785.53 = 10,035.54/x
  3. Step 3: Cross multiply
    15,063.81x = 20,785.53 × 10,035.54
  4. Step 4: Simplify right side
    15,063.81x = 208,594,017.74
  5. Step 5: Solve for x
    x = 208,594,017.74/15,063.81
  6. Step 6: Final answer
    x = 13,847.36

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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.