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Finding the Fourth Proportional to 13,359.17, 18,435.93 and 8,052.86

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Solution

The fourth proportional to 13,359.17, 18,435.93 and 8,052.86 is: 11,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.17 : 18,435.93 = 8,052.86 : x
  2. Step 2: Convert to fraction form
    13,359.17/18,435.93 = 8,052.86/x
  3. Step 3: Cross multiply
    13,359.17x = 18,435.93 × 8,052.86
  4. Step 4: Simplify right side
    13,359.17x = 148,461,963.26
  5. Step 5: Solve for x
    x = 148,461,963.26/13,359.17
  6. Step 6: Final answer
    x = 11,113.11

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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.