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Finding the Fourth Proportional to 66,319.51, 99,346.02 and 32,938.60

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Solution

The fourth proportional to 66,319.51, 99,346.02 and 32,938.60 is: 49,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,319.51 : 99,346.02 = 32,938.60 : x
  2. Step 2: Convert to fraction form
    66,319.51/99,346.02 = 32,938.60/x
  3. Step 3: Cross multiply
    66,319.51x = 99,346.02 × 32,938.60
  4. Step 4: Simplify right side
    66,319.51x = 3,272,318,814.37
  5. Step 5: Solve for x
    x = 3,272,318,814.37/66,319.51
  6. Step 6: Final answer
    x = 49,341.72

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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.