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Finding the Fourth Proportional to 52,848.80, 79,280.40 and 19,560.80

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Solution

The fourth proportional to 52,848.80, 79,280.40 and 19,560.80 is: 29,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,848.80 : 79,280.40 = 19,560.80 : x
  2. Step 2: Convert to fraction form
    52,848.80/79,280.40 = 19,560.80/x
  3. Step 3: Cross multiply
    52,848.80x = 79,280.40 × 19,560.80
  4. Step 4: Simplify right side
    52,848.80x = 1,550,788,048.32
  5. Step 5: Solve for x
    x = 1,550,788,048.32/52,848.80
  6. Step 6: Final answer
    x = 29,343.86

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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.