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Finding the Fourth Proportional to 66,670.48, 92,008.12 and 36,454

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Solution

The fourth proportional to 66,670.48, 92,008.12 and 36,454 is: 50,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,670.48 : 92,008.12 = 36,454 : x
  2. Step 2: Convert to fraction form
    66,670.48/92,008.12 = 36,454/x
  3. Step 3: Cross multiply
    66,670.48x = 92,008.12 × 36,454
  4. Step 4: Simplify right side
    66,670.48x = 3,354,064,006.48
  5. Step 5: Solve for x
    x = 3,354,064,006.48/66,670.48
  6. Step 6: Final answer
    x = 50,308.08

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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.