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Finding the Fourth Proportional to 8,945.84, 12,340.68 and 5,803.04

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Solution

The fourth proportional to 8,945.84, 12,340.68 and 5,803.04 is: 8,005.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.84 : 12,340.68 = 5,803.04 : x
  2. Step 2: Convert to fraction form
    8,945.84/12,340.68 = 5,803.04/x
  3. Step 3: Cross multiply
    8,945.84x = 12,340.68 × 5,803.04
  4. Step 4: Simplify right side
    8,945.84x = 71,613,459.67
  5. Step 5: Solve for x
    x = 71,613,459.67/8,945.84
  6. Step 6: Final answer
    x = 8,005.22

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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.