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Finding the Fourth Proportional to 66,637.26, 99,955.88 and 17,389.26

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Solution

The fourth proportional to 66,637.26, 99,955.88 and 17,389.26 is: 26,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,637.26 : 99,955.88 = 17,389.26 : x
  2. Step 2: Convert to fraction form
    66,637.26/99,955.88 = 17,389.26/x
  3. Step 3: Cross multiply
    66,637.26x = 99,955.88 × 17,389.26
  4. Step 4: Simplify right side
    66,637.26x = 1,738,158,785.85
  5. Step 5: Solve for x
    x = 1,738,158,785.85/66,637.26
  6. Step 6: Final answer
    x = 26,083.89

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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.