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Finding the Fourth Proportional to 10,613.63, 14,646.62 and 5,897.81

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Solution

The fourth proportional to 10,613.63, 14,646.62 and 5,897.81 is: 8,138.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.63 : 14,646.62 = 5,897.81 : x
  2. Step 2: Convert to fraction form
    10,613.63/14,646.62 = 5,897.81/x
  3. Step 3: Cross multiply
    10,613.63x = 14,646.62 × 5,897.81
  4. Step 4: Simplify right side
    10,613.63x = 86,383,033.26
  5. Step 5: Solve for x
    x = 86,383,033.26/10,613.63
  6. Step 6: Final answer
    x = 8,138.88

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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.