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Finding the Fourth Proportional to 9,973.99, 13,763.48 and 5,497.78

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Solution

The fourth proportional to 9,973.99, 13,763.48 and 5,497.78 is: 7,586.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,973.99 : 13,763.48 = 5,497.78 : x
  2. Step 2: Convert to fraction form
    9,973.99/13,763.48 = 5,497.78/x
  3. Step 3: Cross multiply
    9,973.99x = 13,763.48 × 5,497.78
  4. Step 4: Simplify right side
    9,973.99x = 75,668,585.07
  5. Step 5: Solve for x
    x = 75,668,585.07/9,973.99
  6. Step 6: Final answer
    x = 7,586.59

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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.