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Finding the Fourth Proportional to 66,929, 92,360.36 and 38,246.84

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Solution

The fourth proportional to 66,929, 92,360.36 and 38,246.84 is: 52,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,929 : 92,360.36 = 38,246.84 : x
  2. Step 2: Convert to fraction form
    66,929/92,360.36 = 38,246.84/x
  3. Step 3: Cross multiply
    66,929x = 92,360.36 × 38,246.84
  4. Step 4: Simplify right side
    66,929x = 3,532,491,911.26
  5. Step 5: Solve for x
    x = 3,532,491,911.26/66,929
  6. Step 6: Final answer
    x = 52,779.69

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1.5x scale

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.