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Finding the Fourth Proportional to 66,347.76, 91,560.50 and 36,133.22

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Solution

The fourth proportional to 66,347.76, 91,560.50 and 36,133.22 is: 49,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.76 : 91,560.50 = 36,133.22 : x
  2. Step 2: Convert to fraction form
    66,347.76/91,560.50 = 36,133.22/x
  3. Step 3: Cross multiply
    66,347.76x = 91,560.50 × 36,133.22
  4. Step 4: Simplify right side
    66,347.76x = 3,308,375,051.34
  5. Step 5: Solve for x
    x = 3,308,375,051.34/66,347.76
  6. Step 6: Final answer
    x = 49,864.16

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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.