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Finding the Fourth Proportional to 9,922.16, 13,692.15 and 5,445.99

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Solution

The fourth proportional to 9,922.16, 13,692.15 and 5,445.99 is: 7,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,922.16 : 13,692.15 = 5,445.99 : x
  2. Step 2: Convert to fraction form
    9,922.16/13,692.15 = 5,445.99/x
  3. Step 3: Cross multiply
    9,922.16x = 13,692.15 × 5,445.99
  4. Step 4: Simplify right side
    9,922.16x = 74,567,332.40
  5. Step 5: Solve for x
    x = 74,567,332.40/9,922.16
  6. Step 6: Final answer
    x = 7,515.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.