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Finding the Fourth Proportional to 59,668.47, 89,496.90 and 20,220.93

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Solution

The fourth proportional to 59,668.47, 89,496.90 and 20,220.93 is: 30,329.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,668.47 : 89,496.90 = 20,220.93 : x
  2. Step 2: Convert to fraction form
    59,668.47/89,496.90 = 20,220.93/x
  3. Step 3: Cross multiply
    59,668.47x = 89,496.90 × 20,220.93
  4. Step 4: Simplify right side
    59,668.47x = 1,809,710,550.12
  5. Step 5: Solve for x
    x = 1,809,710,550.12/59,668.47
  6. Step 6: Final answer
    x = 30,329.43

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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.