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Finding the Fourth Proportional to 12,527.91, 17,280.19 and 8,057.32

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Solution

The fourth proportional to 12,527.91, 17,280.19 and 8,057.32 is: 11,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,527.91 : 17,280.19 = 8,057.32 : x
  2. Step 2: Convert to fraction form
    12,527.91/17,280.19 = 8,057.32/x
  3. Step 3: Cross multiply
    12,527.91x = 17,280.19 × 8,057.32
  4. Step 4: Simplify right side
    12,527.91x = 139,232,020.49
  5. Step 5: Solve for x
    x = 139,232,020.49/12,527.91
  6. Step 6: Final answer
    x = 11,113.75

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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.