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Finding the Fourth Proportional to 8,599.64, 11,862.45 and 5,407.86

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Solution

The fourth proportional to 8,599.64, 11,862.45 and 5,407.86 is: 7,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.64 : 11,862.45 = 5,407.86 : x
  2. Step 2: Convert to fraction form
    8,599.64/11,862.45 = 5,407.86/x
  3. Step 3: Cross multiply
    8,599.64x = 11,862.45 × 5,407.86
  4. Step 4: Simplify right side
    8,599.64x = 64,150,513.34
  5. Step 5: Solve for x
    x = 64,150,513.34/8,599.64
  6. Step 6: Final answer
    x = 7,459.68

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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.