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Finding the Fourth Proportional to 29,554.88, 40,780.15 and 17,619.32

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Solution

The fourth proportional to 29,554.88, 40,780.15 and 17,619.32 is: 24,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,554.88 : 40,780.15 = 17,619.32 : x
  2. Step 2: Convert to fraction form
    29,554.88/40,780.15 = 17,619.32/x
  3. Step 3: Cross multiply
    29,554.88x = 40,780.15 × 17,619.32
  4. Step 4: Simplify right side
    29,554.88x = 718,518,570.40
  5. Step 5: Solve for x
    x = 718,518,570.40/29,554.88
  6. Step 6: Final answer
    x = 24,311.34

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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.