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Finding the Fourth Proportional to 59,150.40, 81,616.80 and 35,278.40

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Solution

The fourth proportional to 59,150.40, 81,616.80 and 35,278.40 is: 48,677.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,150.40 : 81,616.80 = 35,278.40 : x
  2. Step 2: Convert to fraction form
    59,150.40/81,616.80 = 35,278.40/x
  3. Step 3: Cross multiply
    59,150.40x = 81,616.80 × 35,278.40
  4. Step 4: Simplify right side
    59,150.40x = 2,879,310,117.12
  5. Step 5: Solve for x
    x = 2,879,310,117.12/59,150.40
  6. Step 6: Final answer
    x = 48,677.78

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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.