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Finding the Fourth Proportional to 10,009.58, 13,812.09 and 5,532.20

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Solution

The fourth proportional to 10,009.58, 13,812.09 and 5,532.20 is: 7,633.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,009.58 : 13,812.09 = 5,532.20 : x
  2. Step 2: Convert to fraction form
    10,009.58/13,812.09 = 5,532.20/x
  3. Step 3: Cross multiply
    10,009.58x = 13,812.09 × 5,532.20
  4. Step 4: Simplify right side
    10,009.58x = 76,411,206.29
  5. Step 5: Solve for x
    x = 76,411,206.29/10,009.58
  6. Step 6: Final answer
    x = 7,633.81

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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.