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Finding the Fourth Proportional to 28,046.40, 42,118.20 and 14,924.40

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Solution

The fourth proportional to 28,046.40, 42,118.20 and 14,924.40 is: 22,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.40 : 42,118.20 = 14,924.40 : x
  2. Step 2: Convert to fraction form
    28,046.40/42,118.20 = 14,924.40/x
  3. Step 3: Cross multiply
    28,046.40x = 42,118.20 × 14,924.40
  4. Step 4: Simplify right side
    28,046.40x = 628,588,864.08
  5. Step 5: Solve for x
    x = 628,588,864.08/28,046.40
  6. Step 6: Final answer
    x = 22,412.46

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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.