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Finding the Fourth Proportional to 52,730.80, 79,083.78 and 15,280.99

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Solution

The fourth proportional to 52,730.80, 79,083.78 and 15,280.99 is: 22,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,730.80 : 79,083.78 = 15,280.99 : x
  2. Step 2: Convert to fraction form
    52,730.80/79,083.78 = 15,280.99/x
  3. Step 3: Cross multiply
    52,730.80x = 79,083.78 × 15,280.99
  4. Step 4: Simplify right side
    52,730.80x = 1,208,478,451.34
  5. Step 5: Solve for x
    x = 1,208,478,451.34/52,730.80
  6. Step 6: Final answer
    x = 22,917.89

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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.