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Finding the Fourth Proportional to 11,527.52, 15,908.08 and 6,490.76

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Solution

The fourth proportional to 11,527.52, 15,908.08 and 6,490.76 is: 8,957.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,527.52 : 15,908.08 = 6,490.76 : x
  2. Step 2: Convert to fraction form
    11,527.52/15,908.08 = 6,490.76/x
  3. Step 3: Cross multiply
    11,527.52x = 15,908.08 × 6,490.76
  4. Step 4: Simplify right side
    11,527.52x = 103,255,529.34
  5. Step 5: Solve for x
    x = 103,255,529.34/11,527.52
  6. Step 6: Final answer
    x = 8,957.31

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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.