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Finding the Fourth Proportional to 9,860.54, 13,607.55 and 5,668.54

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Solution

The fourth proportional to 9,860.54, 13,607.55 and 5,668.54 is: 7,822.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.54 : 13,607.55 = 5,668.54 : x
  2. Step 2: Convert to fraction form
    9,860.54/13,607.55 = 5,668.54/x
  3. Step 3: Cross multiply
    9,860.54x = 13,607.55 × 5,668.54
  4. Step 4: Simplify right side
    9,860.54x = 77,134,941.48
  5. Step 5: Solve for x
    x = 77,134,941.48/9,860.54
  6. Step 6: Final answer
    x = 7,822.59

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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.