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Finding the Fourth Proportional to 53,207.80, 79,811.70 and 44,654.20

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Solution

The fourth proportional to 53,207.80, 79,811.70 and 44,654.20 is: 66,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,207.80 : 79,811.70 = 44,654.20 : x
  2. Step 2: Convert to fraction form
    53,207.80/79,811.70 = 44,654.20/x
  3. Step 3: Cross multiply
    53,207.80x = 79,811.70 × 44,654.20
  4. Step 4: Simplify right side
    53,207.80x = 3,563,927,614.14
  5. Step 5: Solve for x
    x = 3,563,927,614.14/53,207.80
  6. Step 6: Final answer
    x = 66,981.30

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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.