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Finding the Fourth Proportional to 35,281.78, 48,689.22 and 19,366.84

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Solution

The fourth proportional to 35,281.78, 48,689.22 and 19,366.84 is: 26,726.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,281.78 : 48,689.22 = 19,366.84 : x
  2. Step 2: Convert to fraction form
    35,281.78/48,689.22 = 19,366.84/x
  3. Step 3: Cross multiply
    35,281.78x = 48,689.22 × 19,366.84
  4. Step 4: Simplify right side
    35,281.78x = 942,956,333.46
  5. Step 5: Solve for x
    x = 942,956,333.46/35,281.78
  6. Step 6: Final answer
    x = 26,726.44

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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.