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Finding the Fourth Proportional to 15,798.72, 23,711.73 and 6,443.90

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Solution

The fourth proportional to 15,798.72, 23,711.73 and 6,443.90 is: 9,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.72 : 23,711.73 = 6,443.90 : x
  2. Step 2: Convert to fraction form
    15,798.72/23,711.73 = 6,443.90/x
  3. Step 3: Cross multiply
    15,798.72x = 23,711.73 × 6,443.90
  4. Step 4: Simplify right side
    15,798.72x = 152,795,866.17
  5. Step 5: Solve for x
    x = 152,795,866.17/15,798.72
  6. Step 6: Final answer
    x = 9,671.41

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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.