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Finding the Fourth Proportional to 66,051.51, 91,148.52 and 35,835.81

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Solution

The fourth proportional to 66,051.51, 91,148.52 and 35,835.81 is: 49,452.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,051.51 : 91,148.52 = 35,835.81 : x
  2. Step 2: Convert to fraction form
    66,051.51/91,148.52 = 35,835.81/x
  3. Step 3: Cross multiply
    66,051.51x = 91,148.52 × 35,835.81
  4. Step 4: Simplify right side
    66,051.51x = 3,266,381,044.50
  5. Step 5: Solve for x
    x = 3,266,381,044.50/66,051.51
  6. Step 6: Final answer
    x = 49,452.03

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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.