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Finding the Fourth Proportional to 8,829.88, 12,184.74 and 5,291.32

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Solution

The fourth proportional to 8,829.88, 12,184.74 and 5,291.32 is: 7,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.88 : 12,184.74 = 5,291.32 : x
  2. Step 2: Convert to fraction form
    8,829.88/12,184.74 = 5,291.32/x
  3. Step 3: Cross multiply
    8,829.88x = 12,184.74 × 5,291.32
  4. Step 4: Simplify right side
    8,829.88x = 64,473,358.46
  5. Step 5: Solve for x
    x = 64,473,358.46/8,829.88
  6. Step 6: Final answer
    x = 7,301.73

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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.