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Finding the Fourth Proportional to 44,312.55, 66,468.83 and 13,147.80

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Solution

The fourth proportional to 44,312.55, 66,468.83 and 13,147.80 is: 19,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,312.55 : 66,468.83 = 13,147.80 : x
  2. Step 2: Convert to fraction form
    44,312.55/66,468.83 = 13,147.80/x
  3. Step 3: Cross multiply
    44,312.55x = 66,468.83 × 13,147.80
  4. Step 4: Simplify right side
    44,312.55x = 873,918,817.34
  5. Step 5: Solve for x
    x = 873,918,817.34/44,312.55
  6. Step 6: Final answer
    x = 19,721.70

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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.