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Finding the Fourth Proportional to 35,344.74, 48,775.90 and 19,430.21

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Solution

The fourth proportional to 35,344.74, 48,775.90 and 19,430.21 is: 26,813.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,344.74 : 48,775.90 = 19,430.21 : x
  2. Step 2: Convert to fraction form
    35,344.74/48,775.90 = 19,430.21/x
  3. Step 3: Cross multiply
    35,344.74x = 48,775.90 × 19,430.21
  4. Step 4: Simplify right side
    35,344.74x = 947,726,035.09
  5. Step 5: Solve for x
    x = 947,726,035.09/35,344.74
  6. Step 6: Final answer
    x = 26,813.78

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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.