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Finding the Fourth Proportional to 38,054, 52,514.52 and 21,290.24

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Solution

The fourth proportional to 38,054, 52,514.52 and 21,290.24 is: 29,380.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,054 : 52,514.52 = 21,290.24 : x
  2. Step 2: Convert to fraction form
    38,054/52,514.52 = 21,290.24/x
  3. Step 3: Cross multiply
    38,054x = 52,514.52 × 21,290.24
  4. Step 4: Simplify right side
    38,054x = 1,118,046,734.28
  5. Step 5: Solve for x
    x = 1,118,046,734.28/38,054
  6. Step 6: Final answer
    x = 29,380.53

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Half scale
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Double scale
Find fourth proportional to 38,055, 52,515.90 and 21,291.24
Similar ratio
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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.