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Finding the Fourth Proportional to 18,913, 26,099.94 and 10,530.04

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Solution

The fourth proportional to 18,913, 26,099.94 and 10,530.04 is: 14,531.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913 : 26,099.94 = 10,530.04 : x
  2. Step 2: Convert to fraction form
    18,913/26,099.94 = 10,530.04/x
  3. Step 3: Cross multiply
    18,913x = 26,099.94 × 10,530.04
  4. Step 4: Simplify right side
    18,913x = 274,833,412.20
  5. Step 5: Solve for x
    x = 274,833,412.20/18,913
  6. Step 6: Final answer
    x = 14,531.46

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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.