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Finding the Fourth Proportional to 7,368.69, 11,056.28 and 3,905.13

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Solution

The fourth proportional to 7,368.69, 11,056.28 and 3,905.13 is: 5,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.69 : 11,056.28 = 3,905.13 : x
  2. Step 2: Convert to fraction form
    7,368.69/11,056.28 = 3,905.13/x
  3. Step 3: Cross multiply
    7,368.69x = 11,056.28 × 3,905.13
  4. Step 4: Simplify right side
    7,368.69x = 43,176,210.72
  5. Step 5: Solve for x
    x = 43,176,210.72/7,368.69
  6. Step 6: Final answer
    x = 5,859.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.