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Finding the Fourth Proportional to 35,120.70, 48,465 and 19,205.28

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Solution

The fourth proportional to 35,120.70, 48,465 and 19,205.28 is: 26,502.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,120.70 : 48,465 = 19,205.28 : x
  2. Step 2: Convert to fraction form
    35,120.70/48,465 = 19,205.28/x
  3. Step 3: Cross multiply
    35,120.70x = 48,465 × 19,205.28
  4. Step 4: Simplify right side
    35,120.70x = 930,783,895.20
  5. Step 5: Solve for x
    x = 930,783,895.20/35,120.70
  6. Step 6: Final answer
    x = 26,502.43

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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.