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Finding the Fourth Proportional to 9,989.73, 14,984.58 and 5,545.32

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Solution

The fourth proportional to 9,989.73, 14,984.58 and 5,545.32 is: 8,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.73 : 14,984.58 = 5,545.32 : x
  2. Step 2: Convert to fraction form
    9,989.73/14,984.58 = 5,545.32/x
  3. Step 3: Cross multiply
    9,989.73x = 14,984.58 × 5,545.32
  4. Step 4: Simplify right side
    9,989.73x = 83,094,291.17
  5. Step 5: Solve for x
    x = 83,094,291.17/9,989.73
  6. Step 6: Final answer
    x = 8,317.97

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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.