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Finding the Fourth Proportional to 35,240.64, 48,624.48 and 20,328

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Solution

The fourth proportional to 35,240.64, 48,624.48 and 20,328 is: 28,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,240.64 : 48,624.48 = 20,328 : x
  2. Step 2: Convert to fraction form
    35,240.64/48,624.48 = 20,328/x
  3. Step 3: Cross multiply
    35,240.64x = 48,624.48 × 20,328
  4. Step 4: Simplify right side
    35,240.64x = 988,438,429.44
  5. Step 5: Solve for x
    x = 988,438,429.44/35,240.64
  6. Step 6: Final answer
    x = 28,048.25

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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.