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Finding the Fourth Proportional to 18,697.14, 25,802.10 and 11,623.53

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Solution

The fourth proportional to 18,697.14, 25,802.10 and 11,623.53 is: 16,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.14 : 25,802.10 = 11,623.53 : x
  2. Step 2: Convert to fraction form
    18,697.14/25,802.10 = 11,623.53/x
  3. Step 3: Cross multiply
    18,697.14x = 25,802.10 × 11,623.53
  4. Step 4: Simplify right side
    18,697.14x = 299,911,483.41
  5. Step 5: Solve for x
    x = 299,911,483.41/18,697.14
  6. Step 6: Final answer
    x = 16,040.50

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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.