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Finding the Fourth Proportional to 10,329.98, 15,477.95 and 5,392.22

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Solution

The fourth proportional to 10,329.98, 15,477.95 and 5,392.22 is: 8,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,329.98 : 15,477.95 = 5,392.22 : x
  2. Step 2: Convert to fraction form
    10,329.98/15,477.95 = 5,392.22/x
  3. Step 3: Cross multiply
    10,329.98x = 15,477.95 × 5,392.22
  4. Step 4: Simplify right side
    10,329.98x = 83,460,447.64
  5. Step 5: Solve for x
    x = 83,460,447.64/10,329.98
  6. Step 6: Final answer
    x = 8,079.44

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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.