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Finding the Fourth Proportional to 11,305.75, 15,602.12 and 6,270.18

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Solution

The fourth proportional to 11,305.75, 15,602.12 and 6,270.18 is: 8,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.75 : 15,602.12 = 6,270.18 : x
  2. Step 2: Convert to fraction form
    11,305.75/15,602.12 = 6,270.18/x
  3. Step 3: Cross multiply
    11,305.75x = 15,602.12 × 6,270.18
  4. Step 4: Simplify right side
    11,305.75x = 97,828,100.78
  5. Step 5: Solve for x
    x = 97,828,100.78/11,305.75
  6. Step 6: Final answer
    x = 8,652.95

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Half scale
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Double scale
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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.