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Finding the Fourth Proportional to 53,294.80, 79,903.80 and 29,928.40

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Solution

The fourth proportional to 53,294.80, 79,903.80 and 29,928.40 is: 44,871.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,294.80 : 79,903.80 = 29,928.40 : x
  2. Step 2: Convert to fraction form
    53,294.80/79,903.80 = 29,928.40/x
  3. Step 3: Cross multiply
    53,294.80x = 79,903.80 × 29,928.40
  4. Step 4: Simplify right side
    53,294.80x = 2,391,392,887.92
  5. Step 5: Solve for x
    x = 2,391,392,887.92/53,294.80
  6. Step 6: Final answer
    x = 44,871.04

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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.