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Finding the Fourth Proportional to 5,598.69, 7,729.52 and 4,975.91

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Solution

The fourth proportional to 5,598.69, 7,729.52 and 4,975.91 is: 6,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,598.69 : 7,729.52 = 4,975.91 : x
  2. Step 2: Convert to fraction form
    5,598.69/7,729.52 = 4,975.91/x
  3. Step 3: Cross multiply
    5,598.69x = 7,729.52 × 4,975.91
  4. Step 4: Simplify right side
    5,598.69x = 38,461,395.86
  5. Step 5: Solve for x
    x = 38,461,395.86/5,598.69
  6. Step 6: Final answer
    x = 6,869.71

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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.