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Finding the Fourth Proportional to 52,080.84, 78,119.46 and 14,641.20

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Solution

The fourth proportional to 52,080.84, 78,119.46 and 14,641.20 is: 21,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,080.84 : 78,119.46 = 14,641.20 : x
  2. Step 2: Convert to fraction form
    52,080.84/78,119.46 = 14,641.20/x
  3. Step 3: Cross multiply
    52,080.84x = 78,119.46 × 14,641.20
  4. Step 4: Simplify right side
    52,080.84x = 1,143,762,637.75
  5. Step 5: Solve for x
    x = 1,143,762,637.75/52,080.84
  6. Step 6: Final answer
    x = 21,961.29

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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.