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Finding the Fourth Proportional to 66,070.69, 91,177.65 and 37,776.98

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Solution

The fourth proportional to 66,070.69, 91,177.65 and 37,776.98 is: 52,132.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,070.69 : 91,177.65 = 37,776.98 : x
  2. Step 2: Convert to fraction form
    66,070.69/91,177.65 = 37,776.98/x
  3. Step 3: Cross multiply
    66,070.69x = 91,177.65 × 37,776.98
  4. Step 4: Simplify right side
    66,070.69x = 3,444,416,488.44
  5. Step 5: Solve for x
    x = 3,444,416,488.44/66,070.69
  6. Step 6: Final answer
    x = 52,132.29

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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.