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Finding the Fourth Proportional to 28,374.84, 39,165.84 and 16,441.08

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Solution

The fourth proportional to 28,374.84, 39,165.84 and 16,441.08 is: 22,693.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,374.84 : 39,165.84 = 16,441.08 : x
  2. Step 2: Convert to fraction form
    28,374.84/39,165.84 = 16,441.08/x
  3. Step 3: Cross multiply
    28,374.84x = 39,165.84 × 16,441.08
  4. Step 4: Simplify right side
    28,374.84x = 643,928,708.71
  5. Step 5: Solve for x
    x = 643,928,708.71/28,374.84
  6. Step 6: Final answer
    x = 22,693.65

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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.