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Finding the Fourth Proportional to 66,460.52, 99,673.77 and 19,702.46

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Solution

The fourth proportional to 66,460.52, 99,673.77 and 19,702.46 is: 29,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,460.52 : 99,673.77 = 19,702.46 : x
  2. Step 2: Convert to fraction form
    66,460.52/99,673.77 = 19,702.46/x
  3. Step 3: Cross multiply
    66,460.52x = 99,673.77 × 19,702.46
  4. Step 4: Simplify right side
    66,460.52x = 1,963,818,466.47
  5. Step 5: Solve for x
    x = 1,963,818,466.47/66,460.52
  6. Step 6: Final answer
    x = 29,548.65

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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.