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Finding the Fourth Proportional to 28,073.58, 38,710.06 and 19,126.32

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Solution

The fourth proportional to 28,073.58, 38,710.06 and 19,126.32 is: 26,372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.58 : 38,710.06 = 19,126.32 : x
  2. Step 2: Convert to fraction form
    28,073.58/38,710.06 = 19,126.32/x
  3. Step 3: Cross multiply
    28,073.58x = 38,710.06 × 19,126.32
  4. Step 4: Simplify right side
    28,073.58x = 740,380,994.78
  5. Step 5: Solve for x
    x = 740,380,994.78/28,073.58
  6. Step 6: Final answer
    x = 26,372.87

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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.