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Finding the Fourth Proportional to 25,641.76, 35,387.28 and 14,464.48

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Solution

The fourth proportional to 25,641.76, 35,387.28 and 14,464.48 is: 19,961.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.76 : 35,387.28 = 14,464.48 : x
  2. Step 2: Convert to fraction form
    25,641.76/35,387.28 = 14,464.48/x
  3. Step 3: Cross multiply
    25,641.76x = 35,387.28 × 14,464.48
  4. Step 4: Simplify right side
    25,641.76x = 511,858,603.81
  5. Step 5: Solve for x
    x = 511,858,603.81/25,641.76
  6. Step 6: Final answer
    x = 19,961.91

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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.