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Finding the Fourth Proportional to 25,612.80, 38,332.80 and 22,502.40

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Solution

The fourth proportional to 25,612.80, 38,332.80 and 22,502.40 is: 33,677.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,612.80 : 38,332.80 = 22,502.40 : x
  2. Step 2: Convert to fraction form
    25,612.80/38,332.80 = 22,502.40/x
  3. Step 3: Cross multiply
    25,612.80x = 38,332.80 × 22,502.40
  4. Step 4: Simplify right side
    25,612.80x = 862,579,998.72
  5. Step 5: Solve for x
    x = 862,579,998.72/25,612.80
  6. Step 6: Final answer
    x = 33,677.69

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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.