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Finding the Fourth Proportional to 66,041.37, 99,077.16 and 28,607.67

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Solution

The fourth proportional to 66,041.37, 99,077.16 and 28,607.67 is: 42,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,041.37 : 99,077.16 = 28,607.67 : x
  2. Step 2: Convert to fraction form
    66,041.37/99,077.16 = 28,607.67/x
  3. Step 3: Cross multiply
    66,041.37x = 99,077.16 × 28,607.67
  4. Step 4: Simplify right side
    66,041.37x = 2,834,366,697.82
  5. Step 5: Solve for x
    x = 2,834,366,697.82/66,041.37
  6. Step 6: Final answer
    x = 42,918.05

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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.