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Finding the Fourth Proportional to 53,187.84, 79,781.68 and 25,098.64

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Solution

The fourth proportional to 53,187.84, 79,781.68 and 25,098.64 is: 37,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,187.84 : 79,781.68 = 25,098.64 : x
  2. Step 2: Convert to fraction form
    53,187.84/79,781.68 = 25,098.64/x
  3. Step 3: Cross multiply
    53,187.84x = 79,781.68 × 25,098.64
  4. Step 4: Simplify right side
    53,187.84x = 2,002,411,664.92
  5. Step 5: Solve for x
    x = 2,002,411,664.92/53,187.84
  6. Step 6: Final answer
    x = 37,647.92

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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.