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Finding the Fourth Proportional to 25,646.40, 35,393.40 and 15,036.84

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Solution

The fourth proportional to 25,646.40, 35,393.40 and 15,036.84 is: 20,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.40 : 35,393.40 = 15,036.84 : x
  2. Step 2: Convert to fraction form
    25,646.40/35,393.40 = 15,036.84/x
  3. Step 3: Cross multiply
    25,646.40x = 35,393.40 × 15,036.84
  4. Step 4: Simplify right side
    25,646.40x = 532,204,892.86
  5. Step 5: Solve for x
    x = 532,204,892.86/25,646.40
  6. Step 6: Final answer
    x = 20,751.64

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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.