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Finding the Fourth Proportional to 66,395.57, 91,623.00 and 37,715.16

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Solution

The fourth proportional to 66,395.57, 91,623.00 and 37,715.16 is: 52,045.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,395.57 : 91,623.00 = 37,715.16 : x
  2. Step 2: Convert to fraction form
    66,395.57/91,623.00 = 37,715.16/x
  3. Step 3: Cross multiply
    66,395.57x = 91,623.00 × 37,715.16
  4. Step 4: Simplify right side
    66,395.57x = 3,455,575,733.33
  5. Step 5: Solve for x
    x = 3,455,575,733.33/66,395.57
  6. Step 6: Final answer
    x = 52,045.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.