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Finding the Fourth Proportional to 15,758.70, 23,612.54 and 7,418.94

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Solution

The fourth proportional to 15,758.70, 23,612.54 and 7,418.94 is: 11,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,758.70 : 23,612.54 = 7,418.94 : x
  2. Step 2: Convert to fraction form
    15,758.70/23,612.54 = 7,418.94/x
  3. Step 3: Cross multiply
    15,758.70x = 23,612.54 × 7,418.94
  4. Step 4: Simplify right side
    15,758.70x = 175,179,980.41
  5. Step 5: Solve for x
    x = 175,179,980.41/15,758.70
  6. Step 6: Final answer
    x = 11,116.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.