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Finding the Fourth Proportional to 25,398.72, 35,050.08 and 14,220.72

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Solution

The fourth proportional to 25,398.72, 35,050.08 and 14,220.72 is: 19,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,398.72 : 35,050.08 = 14,220.72 : x
  2. Step 2: Convert to fraction form
    25,398.72/35,050.08 = 14,220.72/x
  3. Step 3: Cross multiply
    25,398.72x = 35,050.08 × 14,220.72
  4. Step 4: Simplify right side
    25,398.72x = 498,437,373.66
  5. Step 5: Solve for x
    x = 498,437,373.66/25,398.72
  6. Step 6: Final answer
    x = 19,624.51

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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.