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Finding the Fourth Proportional to 35,315.52, 48,737.78 and 19,400.12

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Solution

The fourth proportional to 35,315.52, 48,737.78 and 19,400.12 is: 26,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,315.52 : 48,737.78 = 19,400.12 : x
  2. Step 2: Convert to fraction form
    35,315.52/48,737.78 = 19,400.12/x
  3. Step 3: Cross multiply
    35,315.52x = 48,737.78 × 19,400.12
  4. Step 4: Simplify right side
    35,315.52x = 945,518,780.53
  5. Step 5: Solve for x
    x = 945,518,780.53/35,315.52
  6. Step 6: Final answer
    x = 26,773.46

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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.