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Finding the Fourth Proportional to 35,528.80, 49,029.60 and 19,613.20

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Solution

The fourth proportional to 35,528.80, 49,029.60 and 19,613.20 is: 27,066.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,528.80 : 49,029.60 = 19,613.20 : x
  2. Step 2: Convert to fraction form
    35,528.80/49,029.60 = 19,613.20/x
  3. Step 3: Cross multiply
    35,528.80x = 49,029.60 × 19,613.20
  4. Step 4: Simplify right side
    35,528.80x = 961,627,350.72
  5. Step 5: Solve for x
    x = 961,627,350.72/35,528.80
  6. Step 6: Final answer
    x = 27,066.14

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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.