Home / 39,222.32-54,128.04-29,774.48

Finding the Fourth Proportional to 39,222.32, 54,128.04 and 29,774.48

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Solution

The fourth proportional to 39,222.32, 54,128.04 and 29,774.48 is: 41,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,222.32 : 54,128.04 = 29,774.48 : x
  2. Step 2: Convert to fraction form
    39,222.32/54,128.04 = 29,774.48/x
  3. Step 3: Cross multiply
    39,222.32x = 54,128.04 × 29,774.48
  4. Step 4: Simplify right side
    39,222.32x = 1,611,634,244.42
  5. Step 5: Solve for x
    x = 1,611,634,244.42/39,222.32
  6. Step 6: Final answer
    x = 41,089.72

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Half scale
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Double scale
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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.