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Finding the Fourth Proportional to 38,853.99, 58,280.99 and 15,480.63

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Solution

The fourth proportional to 38,853.99, 58,280.99 and 15,480.63 is: 23,220.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,853.99 : 58,280.99 = 15,480.63 : x
  2. Step 2: Convert to fraction form
    38,853.99/58,280.99 = 15,480.63/x
  3. Step 3: Cross multiply
    38,853.99x = 58,280.99 × 15,480.63
  4. Step 4: Simplify right side
    38,853.99x = 902,226,364.82
  5. Step 5: Solve for x
    x = 902,226,364.82/38,853.99
  6. Step 6: Final answer
    x = 23,220.95

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.