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Finding the Fourth Proportional to 22,653.32, 31,260.50 and 12,582.40

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Solution

The fourth proportional to 22,653.32, 31,260.50 and 12,582.40 is: 17,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,653.32 : 31,260.50 = 12,582.40 : x
  2. Step 2: Convert to fraction form
    22,653.32/31,260.50 = 12,582.40/x
  3. Step 3: Cross multiply
    22,653.32x = 31,260.50 × 12,582.40
  4. Step 4: Simplify right side
    22,653.32x = 393,332,115.20
  5. Step 5: Solve for x
    x = 393,332,115.20/22,653.32
  6. Step 6: Final answer
    x = 17,363.11

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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.