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Finding the Fourth Proportional to 35,854.85, 49,479.03 and 19,939.16

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Solution

The fourth proportional to 35,854.85, 49,479.03 and 19,939.16 is: 27,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,854.85 : 49,479.03 = 19,939.16 : x
  2. Step 2: Convert to fraction form
    35,854.85/49,479.03 = 19,939.16/x
  3. Step 3: Cross multiply
    35,854.85x = 49,479.03 × 19,939.16
  4. Step 4: Simplify right side
    35,854.85x = 986,570,048.42
  5. Step 5: Solve for x
    x = 986,570,048.42/35,854.85
  6. Step 6: Final answer
    x = 27,515.67

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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.