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Finding the Fourth Proportional to 62,897.52, 86,800.16 and 34,218.80

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Solution

The fourth proportional to 62,897.52, 86,800.16 and 34,218.80 is: 47,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,897.52 : 86,800.16 = 34,218.80 : x
  2. Step 2: Convert to fraction form
    62,897.52/86,800.16 = 34,218.80/x
  3. Step 3: Cross multiply
    62,897.52x = 86,800.16 × 34,218.80
  4. Step 4: Simplify right side
    62,897.52x = 2,970,196,709.91
  5. Step 5: Solve for x
    x = 2,970,196,709.91/62,897.52
  6. Step 6: Final answer
    x = 47,222.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.