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Finding the Fourth Proportional to 16,435.84, 22,653.84 and 12,455.68

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Solution

The fourth proportional to 16,435.84, 22,653.84 and 12,455.68 is: 17,167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,435.84 : 22,653.84 = 12,455.68 : x
  2. Step 2: Convert to fraction form
    16,435.84/22,653.84 = 12,455.68/x
  3. Step 3: Cross multiply
    16,435.84x = 22,653.84 × 12,455.68
  4. Step 4: Simplify right side
    16,435.84x = 282,168,981.81
  5. Step 5: Solve for x
    x = 282,168,981.81/16,435.84
  6. Step 6: Final answer
    x = 17,167.91

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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.