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Finding the Fourth Proportional to 35,187.80, 48,559.95 and 20,080.16

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Solution

The fourth proportional to 35,187.80, 48,559.95 and 20,080.16 is: 27,711.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,187.80 : 48,559.95 = 20,080.16 : x
  2. Step 2: Convert to fraction form
    35,187.80/48,559.95 = 20,080.16/x
  3. Step 3: Cross multiply
    35,187.80x = 48,559.95 × 20,080.16
  4. Step 4: Simplify right side
    35,187.80x = 975,091,393.99
  5. Step 5: Solve for x
    x = 975,091,393.99/35,187.80
  6. Step 6: Final answer
    x = 27,711.07

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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.