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Finding the Fourth Proportional to 7,951.70, 11,875.58 and 6,769.10

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Solution

The fourth proportional to 7,951.70, 11,875.58 and 6,769.10 is: 10,109.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.70 : 11,875.58 = 6,769.10 : x
  2. Step 2: Convert to fraction form
    7,951.70/11,875.58 = 6,769.10/x
  3. Step 3: Cross multiply
    7,951.70x = 11,875.58 × 6,769.10
  4. Step 4: Simplify right side
    7,951.70x = 80,387,009.81
  5. Step 5: Solve for x
    x = 80,387,009.81/7,951.70
  6. Step 6: Final answer
    x = 10,109.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.