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Finding the Fourth Proportional to 66,775.26, 92,154.30 and 38,482.77

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Solution

The fourth proportional to 66,775.26, 92,154.30 and 38,482.77 is: 53,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,775.26 : 92,154.30 = 38,482.77 : x
  2. Step 2: Convert to fraction form
    66,775.26/92,154.30 = 38,482.77/x
  3. Step 3: Cross multiply
    66,775.26x = 92,154.30 × 38,482.77
  4. Step 4: Simplify right side
    66,775.26x = 3,546,352,731.41
  5. Step 5: Solve for x
    x = 3,546,352,731.41/66,775.26
  6. Step 6: Final answer
    x = 53,108.78

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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.