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Finding the Fourth Proportional to 54,312.60, 81,468.90 and 33,547.80

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Solution

The fourth proportional to 54,312.60, 81,468.90 and 33,547.80 is: 50,321.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,312.60 : 81,468.90 = 33,547.80 : x
  2. Step 2: Convert to fraction form
    54,312.60/81,468.90 = 33,547.80/x
  3. Step 3: Cross multiply
    54,312.60x = 81,468.90 × 33,547.80
  4. Step 4: Simplify right side
    54,312.60x = 2,733,102,363.42
  5. Step 5: Solve for x
    x = 2,733,102,363.42/54,312.60
  6. Step 6: Final answer
    x = 50,321.70

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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.