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Finding the Fourth Proportional to 14,059.49, 19,398.87 and 8,393.13

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Solution

The fourth proportional to 14,059.49, 19,398.87 and 8,393.13 is: 11,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.49 : 19,398.87 = 8,393.13 : x
  2. Step 2: Convert to fraction form
    14,059.49/19,398.87 = 8,393.13/x
  3. Step 3: Cross multiply
    14,059.49x = 19,398.87 × 8,393.13
  4. Step 4: Simplify right side
    14,059.49x = 162,817,237.76
  5. Step 5: Solve for x
    x = 162,817,237.76/14,059.49
  6. Step 6: Final answer
    x = 11,580.60

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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.