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Finding the Fourth Proportional to 70,614.46, 105,925.34 and 18,024.40

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Solution

The fourth proportional to 70,614.46, 105,925.34 and 18,024.40 is: 27,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,614.46 : 105,925.34 = 18,024.40 : x
  2. Step 2: Convert to fraction form
    70,614.46/105,925.34 = 18,024.40/x
  3. Step 3: Cross multiply
    70,614.46x = 105,925.34 × 18,024.40
  4. Step 4: Simplify right side
    70,614.46x = 1,909,240,774.38
  5. Step 5: Solve for x
    x = 1,909,240,774.38/70,614.46
  6. Step 6: Final answer
    x = 27,037.53

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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.