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Finding the Fourth Proportional to 59,620.80, 89,431.20 and 58,699.20

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Solution

The fourth proportional to 59,620.80, 89,431.20 and 58,699.20 is: 88,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,620.80 : 89,431.20 = 58,699.20 : x
  2. Step 2: Convert to fraction form
    59,620.80/89,431.20 = 58,699.20/x
  3. Step 3: Cross multiply
    59,620.80x = 89,431.20 × 58,699.20
  4. Step 4: Simplify right side
    59,620.80x = 5,249,539,895.04
  5. Step 5: Solve for x
    x = 5,249,539,895.04/59,620.80
  6. Step 6: Final answer
    x = 88,048.80

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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.