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Finding the Fourth Proportional to 25,398.64, 35,050.08 and 14,220.64

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Solution

The fourth proportional to 25,398.64, 35,050.08 and 14,220.64 is: 19,624.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,398.64 : 35,050.08 = 14,220.64 : x
  2. Step 2: Convert to fraction form
    25,398.64/35,050.08 = 14,220.64/x
  3. Step 3: Cross multiply
    25,398.64x = 35,050.08 × 14,220.64
  4. Step 4: Simplify right side
    25,398.64x = 498,434,569.65
  5. Step 5: Solve for x
    x = 498,434,569.65/25,398.64
  6. Step 6: Final answer
    x = 19,624.46

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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.