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Finding the Fourth Proportional to 50,603.40, 75,904.92 and 19,416.78

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Solution

The fourth proportional to 50,603.40, 75,904.92 and 19,416.78 is: 29,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,603.40 : 75,904.92 = 19,416.78 : x
  2. Step 2: Convert to fraction form
    50,603.40/75,904.92 = 19,416.78/x
  3. Step 3: Cross multiply
    50,603.40x = 75,904.92 × 19,416.78
  4. Step 4: Simplify right side
    50,603.40x = 1,473,829,132.56
  5. Step 5: Solve for x
    x = 1,473,829,132.56/50,603.40
  6. Step 6: Final answer
    x = 29,125.10

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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.