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Finding the Fourth Proportional to 13,092.59, 18,068.16 and 7,124.64

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Solution

The fourth proportional to 13,092.59, 18,068.16 and 7,124.64 is: 9,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.59 : 18,068.16 = 7,124.64 : x
  2. Step 2: Convert to fraction form
    13,092.59/18,068.16 = 7,124.64/x
  3. Step 3: Cross multiply
    13,092.59x = 18,068.16 × 7,124.64
  4. Step 4: Simplify right side
    13,092.59x = 128,729,135.46
  5. Step 5: Solve for x
    x = 128,729,135.46/13,092.59
  6. Step 6: Final answer
    x = 9,832.21

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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.