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Finding the Fourth Proportional to 52,720.80, 79,040.70 and 26,444.40

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Solution

The fourth proportional to 52,720.80, 79,040.70 and 26,444.40 is: 39,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,720.80 : 79,040.70 = 26,444.40 : x
  2. Step 2: Convert to fraction form
    52,720.80/79,040.70 = 26,444.40/x
  3. Step 3: Cross multiply
    52,720.80x = 79,040.70 × 26,444.40
  4. Step 4: Simplify right side
    52,720.80x = 2,090,183,887.08
  5. Step 5: Solve for x
    x = 2,090,183,887.08/52,720.80
  6. Step 6: Final answer
    x = 39,646.29

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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.