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Finding the Fourth Proportional to 13,094.16, 18,069.99 and 7,125.78

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Solution

The fourth proportional to 13,094.16, 18,069.99 and 7,125.78 is: 9,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,094.16 : 18,069.99 = 7,125.78 : x
  2. Step 2: Convert to fraction form
    13,094.16/18,069.99 = 7,125.78/x
  3. Step 3: Cross multiply
    13,094.16x = 18,069.99 × 7,125.78
  4. Step 4: Simplify right side
    13,094.16x = 128,762,773.34
  5. Step 5: Solve for x
    x = 128,762,773.34/13,094.16
  6. Step 6: Final answer
    x = 9,833.60

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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.