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Finding the Fourth Proportional to 15,421.69, 23,129.08 and 7,093.71

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Solution

The fourth proportional to 15,421.69, 23,129.08 and 7,093.71 is: 10,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.69 : 23,129.08 = 7,093.71 : x
  2. Step 2: Convert to fraction form
    15,421.69/23,129.08 = 7,093.71/x
  3. Step 3: Cross multiply
    15,421.69x = 23,129.08 × 7,093.71
  4. Step 4: Simplify right side
    15,421.69x = 164,071,025.02
  5. Step 5: Solve for x
    x = 164,071,025.02/15,421.69
  6. Step 6: Final answer
    x = 10,638.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.