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Finding the Fourth Proportional to 52,653.20, 78,826.20 and 51,117.20

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Solution

The fourth proportional to 52,653.20, 78,826.20 and 51,117.20 is: 76,526.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,653.20 : 78,826.20 = 51,117.20 : x
  2. Step 2: Convert to fraction form
    52,653.20/78,826.20 = 51,117.20/x
  3. Step 3: Cross multiply
    52,653.20x = 78,826.20 × 51,117.20
  4. Step 4: Simplify right side
    52,653.20x = 4,029,374,630.64
  5. Step 5: Solve for x
    x = 4,029,374,630.64/52,653.20
  6. Step 6: Final answer
    x = 76,526.68

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1.5x scale

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.