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Finding the Fourth Proportional to 7,009.92, 10,506.48 and 3,109.92

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Solution

The fourth proportional to 7,009.92, 10,506.48 and 3,109.92 is: 4,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.92 : 10,506.48 = 3,109.92 : x
  2. Step 2: Convert to fraction form
    7,009.92/10,506.48 = 3,109.92/x
  3. Step 3: Cross multiply
    7,009.92x = 10,506.48 × 3,109.92
  4. Step 4: Simplify right side
    7,009.92x = 32,674,312.28
  5. Step 5: Solve for x
    x = 32,674,312.28/7,009.92
  6. Step 6: Final answer
    x = 4,661.15

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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.