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Finding the Fourth Proportional to 53,000.72, 79,504.76 and 17,928.52

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Solution

The fourth proportional to 53,000.72, 79,504.76 and 17,928.52 is: 26,894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,000.72 : 79,504.76 = 17,928.52 : x
  2. Step 2: Convert to fraction form
    53,000.72/79,504.76 = 17,928.52/x
  3. Step 3: Cross multiply
    53,000.72x = 79,504.76 × 17,928.52
  4. Step 4: Simplify right side
    53,000.72x = 1,425,402,679.76
  5. Step 5: Solve for x
    x = 1,425,402,679.76/53,000.72
  6. Step 6: Final answer
    x = 26,894.02

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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.