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Finding the Fourth Proportional to 57,956.40, 86,934.60 and 26,852.40

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Solution

The fourth proportional to 57,956.40, 86,934.60 and 26,852.40 is: 40,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,956.40 : 86,934.60 = 26,852.40 : x
  2. Step 2: Convert to fraction form
    57,956.40/86,934.60 = 26,852.40/x
  3. Step 3: Cross multiply
    57,956.40x = 86,934.60 × 26,852.40
  4. Step 4: Simplify right side
    57,956.40x = 2,334,402,653.04
  5. Step 5: Solve for x
    x = 2,334,402,653.04/57,956.40
  6. Step 6: Final answer
    x = 40,278.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.