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Finding the Fourth Proportional to 38,812.32, 58,218.48 and 30,984.48

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Solution

The fourth proportional to 38,812.32, 58,218.48 and 30,984.48 is: 46,476.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,812.32 : 58,218.48 = 30,984.48 : x
  2. Step 2: Convert to fraction form
    38,812.32/58,218.48 = 30,984.48/x
  3. Step 3: Cross multiply
    38,812.32x = 58,218.48 × 30,984.48
  4. Step 4: Simplify right side
    38,812.32x = 1,803,869,329.19
  5. Step 5: Solve for x
    x = 1,803,869,329.19/38,812.32
  6. Step 6: Final answer
    x = 46,476.72

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Similar ratio
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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.