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Finding the Fourth Proportional to 53,148, 79,717.08 and 16,212

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Solution

The fourth proportional to 53,148, 79,717.08 and 16,212 is: 24,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,148 : 79,717.08 = 16,212 : x
  2. Step 2: Convert to fraction form
    53,148/79,717.08 = 16,212/x
  3. Step 3: Cross multiply
    53,148x = 79,717.08 × 16,212
  4. Step 4: Simplify right side
    53,148x = 1,292,373,300.96
  5. Step 5: Solve for x
    x = 1,292,373,300.96/53,148
  6. Step 6: Final answer
    x = 24,316.50

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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.