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Finding the Fourth Proportional to 52,788.96, 72,821.16 and 32,639.40

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Solution

The fourth proportional to 52,788.96, 72,821.16 and 32,639.40 is: 45,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,788.96 : 72,821.16 = 32,639.40 : x
  2. Step 2: Convert to fraction form
    52,788.96/72,821.16 = 32,639.40/x
  3. Step 3: Cross multiply
    52,788.96x = 72,821.16 × 32,639.40
  4. Step 4: Simplify right side
    52,788.96x = 2,376,838,969.70
  5. Step 5: Solve for x
    x = 2,376,838,969.70/52,788.96
  6. Step 6: Final answer
    x = 45,025.30

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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.