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Finding the Fourth Proportional to 74,779.80, 112,169.74 and 22,188.82

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Solution

The fourth proportional to 74,779.80, 112,169.74 and 22,188.82 is: 33,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,779.80 : 112,169.74 = 22,188.82 : x
  2. Step 2: Convert to fraction form
    74,779.80/112,169.74 = 22,188.82/x
  3. Step 3: Cross multiply
    74,779.80x = 112,169.74 × 22,188.82
  4. Step 4: Simplify right side
    74,779.80x = 2,488,913,609.46
  5. Step 5: Solve for x
    x = 2,488,913,609.46/74,779.80
  6. Step 6: Final answer
    x = 33,283.24

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1.5x scale

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.