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Finding the Fourth Proportional to 15,554.80, 23,332.20 and 8,993.80

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Solution

The fourth proportional to 15,554.80, 23,332.20 and 8,993.80 is: 13,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.80 : 23,332.20 = 8,993.80 : x
  2. Step 2: Convert to fraction form
    15,554.80/23,332.20 = 8,993.80/x
  3. Step 3: Cross multiply
    15,554.80x = 23,332.20 × 8,993.80
  4. Step 4: Simplify right side
    15,554.80x = 209,845,140.36
  5. Step 5: Solve for x
    x = 209,845,140.36/15,554.80
  6. Step 6: Final answer
    x = 13,490.70

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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.