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Finding the Fourth Proportional to 29,271.40, 43,907.10 and 18,773.80

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Solution

The fourth proportional to 29,271.40, 43,907.10 and 18,773.80 is: 28,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.40 : 43,907.10 = 18,773.80 : x
  2. Step 2: Convert to fraction form
    29,271.40/43,907.10 = 18,773.80/x
  3. Step 3: Cross multiply
    29,271.40x = 43,907.10 × 18,773.80
  4. Step 4: Simplify right side
    29,271.40x = 824,303,113.98
  5. Step 5: Solve for x
    x = 824,303,113.98/29,271.40
  6. Step 6: Final answer
    x = 28,160.70

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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.