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Finding the Fourth Proportional to 53,197.48, 79,795.74 and 20,365.48

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Solution

The fourth proportional to 53,197.48, 79,795.74 and 20,365.48 is: 30,548.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,197.48 : 79,795.74 = 20,365.48 : x
  2. Step 2: Convert to fraction form
    53,197.48/79,795.74 = 20,365.48/x
  3. Step 3: Cross multiply
    53,197.48x = 79,795.74 × 20,365.48
  4. Step 4: Simplify right side
    53,197.48x = 1,625,078,547.06
  5. Step 5: Solve for x
    x = 1,625,078,547.06/53,197.48
  6. Step 6: Final answer
    x = 30,548.04

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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.