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Finding the Fourth Proportional to 58,913.60, 88,456.80 and 45,780.80

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Solution

The fourth proportional to 58,913.60, 88,456.80 and 45,780.80 is: 68,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,913.60 : 88,456.80 = 45,780.80 : x
  2. Step 2: Convert to fraction form
    58,913.60/88,456.80 = 45,780.80/x
  3. Step 3: Cross multiply
    58,913.60x = 88,456.80 × 45,780.80
  4. Step 4: Simplify right side
    58,913.60x = 4,049,623,069.44
  5. Step 5: Solve for x
    x = 4,049,623,069.44/58,913.60
  6. Step 6: Final answer
    x = 68,738.34

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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.