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Finding the Fourth Proportional to 25,878.30, 35,715.04 and 14,394.36

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Solution

The fourth proportional to 25,878.30, 35,715.04 and 14,394.36 is: 19,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.30 : 35,715.04 = 14,394.36 : x
  2. Step 2: Convert to fraction form
    25,878.30/35,715.04 = 14,394.36/x
  3. Step 3: Cross multiply
    25,878.30x = 35,715.04 × 14,394.36
  4. Step 4: Simplify right side
    25,878.30x = 514,094,892.63
  5. Step 5: Solve for x
    x = 514,094,892.63/25,878.30
  6. Step 6: Final answer
    x = 19,865.87

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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.