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Finding the Fourth Proportional to 29,386.84, 44,047.42 and 12,760.80

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Solution

The fourth proportional to 29,386.84, 44,047.42 and 12,760.80 is: 19,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,386.84 : 44,047.42 = 12,760.80 : x
  2. Step 2: Convert to fraction form
    29,386.84/44,047.42 = 12,760.80/x
  3. Step 3: Cross multiply
    29,386.84x = 44,047.42 × 12,760.80
  4. Step 4: Simplify right side
    29,386.84x = 562,080,317.14
  5. Step 5: Solve for x
    x = 562,080,317.14/29,386.84
  6. Step 6: Final answer
    x = 19,126.94

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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.