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Finding the Fourth Proportional to 25,569.60, 35,265.60 and 19,586.40

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Solution

The fourth proportional to 25,569.60, 35,265.60 and 19,586.40 is: 27,013.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,569.60 : 35,265.60 = 19,586.40 : x
  2. Step 2: Convert to fraction form
    25,569.60/35,265.60 = 19,586.40/x
  3. Step 3: Cross multiply
    25,569.60x = 35,265.60 × 19,586.40
  4. Step 4: Simplify right side
    25,569.60x = 690,726,147.84
  5. Step 5: Solve for x
    x = 690,726,147.84/25,569.60
  6. Step 6: Final answer
    x = 27,013.57

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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.