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Finding the Fourth Proportional to 35,340.85, 48,773.49 and 19,428.40

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Solution

The fourth proportional to 35,340.85, 48,773.49 and 19,428.40 is: 26,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,340.85 : 48,773.49 = 19,428.40 : x
  2. Step 2: Convert to fraction form
    35,340.85/48,773.49 = 19,428.40/x
  3. Step 3: Cross multiply
    35,340.85x = 48,773.49 × 19,428.40
  4. Step 4: Simplify right side
    35,340.85x = 947,590,873.12
  5. Step 5: Solve for x
    x = 947,590,873.12/35,340.85
  6. Step 6: Final answer
    x = 26,812.91

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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.