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Finding the Fourth Proportional to 31,798.99, 47,672.43 and 14,017.06

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Solution

The fourth proportional to 31,798.99, 47,672.43 and 14,017.06 is: 21,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.99 : 47,672.43 = 14,017.06 : x
  2. Step 2: Convert to fraction form
    31,798.99/47,672.43 = 14,017.06/x
  3. Step 3: Cross multiply
    31,798.99x = 47,672.43 × 14,017.06
  4. Step 4: Simplify right side
    31,798.99x = 668,227,311.66
  5. Step 5: Solve for x
    x = 668,227,311.66/31,798.99
  6. Step 6: Final answer
    x = 21,014.10

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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.