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Finding the Fourth Proportional to 11,000.76, 15,178.93 and 6,528.48

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Solution

The fourth proportional to 11,000.76, 15,178.93 and 6,528.48 is: 9,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,000.76 : 15,178.93 = 6,528.48 : x
  2. Step 2: Convert to fraction form
    11,000.76/15,178.93 = 6,528.48/x
  3. Step 3: Cross multiply
    11,000.76x = 15,178.93 × 6,528.48
  4. Step 4: Simplify right side
    11,000.76x = 99,095,340.93
  5. Step 5: Solve for x
    x = 99,095,340.93/11,000.76
  6. Step 6: Final answer
    x = 9,008.04

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Half 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.