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Finding the Fourth Proportional to 66,653.94, 91,887.54 and 45,406.02

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Solution

The fourth proportional to 66,653.94, 91,887.54 and 45,406.02 is: 62,595.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.94 : 91,887.54 = 45,406.02 : x
  2. Step 2: Convert to fraction form
    66,653.94/91,887.54 = 45,406.02/x
  3. Step 3: Cross multiply
    66,653.94x = 91,887.54 × 45,406.02
  4. Step 4: Simplify right side
    66,653.94x = 4,172,247,478.99
  5. Step 5: Solve for x
    x = 4,172,247,478.99/66,653.94
  6. Step 6: Final answer
    x = 62,595.66

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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.