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Finding the Fourth Proportional to 66,298.55, 91,492.74 and 36,084.06

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Solution

The fourth proportional to 66,298.55, 91,492.74 and 36,084.06 is: 49,796.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.55 : 91,492.74 = 36,084.06 : x
  2. Step 2: Convert to fraction form
    66,298.55/91,492.74 = 36,084.06/x
  3. Step 3: Cross multiply
    66,298.55x = 91,492.74 × 36,084.06
  4. Step 4: Simplify right side
    66,298.55x = 3,301,429,519.72
  5. Step 5: Solve for x
    x = 3,301,429,519.72/66,298.55
  6. Step 6: Final answer
    x = 49,796.41

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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.