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Finding the Fourth Proportional to 8,886.64, 13,329.60 and 3,339.52

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Solution

The fourth proportional to 8,886.64, 13,329.60 and 3,339.52 is: 5,009.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.64 : 13,329.60 = 3,339.52 : x
  2. Step 2: Convert to fraction form
    8,886.64/13,329.60 = 3,339.52/x
  3. Step 3: Cross multiply
    8,886.64x = 13,329.60 × 3,339.52
  4. Step 4: Simplify right side
    8,886.64x = 44,514,465.79
  5. Step 5: Solve for x
    x = 44,514,465.79/8,886.64
  6. Step 6: Final answer
    x = 5,009.14

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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.