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Finding the Fourth Proportional to 84,765.44, 127,106.72 and 25,590.08

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Solution

The fourth proportional to 84,765.44, 127,106.72 and 25,590.08 is: 38,372.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,765.44 : 127,106.72 = 25,590.08 : x
  2. Step 2: Convert to fraction form
    84,765.44/127,106.72 = 25,590.08/x
  3. Step 3: Cross multiply
    84,765.44x = 127,106.72 × 25,590.08
  4. Step 4: Simplify right side
    84,765.44x = 3,252,671,133.34
  5. Step 5: Solve for x
    x = 3,252,671,133.34/84,765.44
  6. Step 6: Final answer
    x = 38,372.61

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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.