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Finding the Fourth Proportional to 5,088.86, 7,631.07 and 1,800.86

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Solution

The fourth proportional to 5,088.86, 7,631.07 and 1,800.86 is: 2,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.86 : 7,631.07 = 1,800.86 : x
  2. Step 2: Convert to fraction form
    5,088.86/7,631.07 = 1,800.86/x
  3. Step 3: Cross multiply
    5,088.86x = 7,631.07 × 1,800.86
  4. Step 4: Simplify right side
    5,088.86x = 13,742,488.72
  5. Step 5: Solve for x
    x = 13,742,488.72/5,088.86
  6. Step 6: Final answer
    x = 2,700.50

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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.