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Finding the Fourth Proportional to 5,718.30, 8,565.30 and 4,746.30

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Solution

The fourth proportional to 5,718.30, 8,565.30 and 4,746.30 is: 7,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.30 : 8,565.30 = 4,746.30 : x
  2. Step 2: Convert to fraction form
    5,718.30/8,565.30 = 4,746.30/x
  3. Step 3: Cross multiply
    5,718.30x = 8,565.30 × 4,746.30
  4. Step 4: Simplify right side
    5,718.30x = 40,653,483.39
  5. Step 5: Solve for x
    x = 40,653,483.39/5,718.30
  6. Step 6: Final answer
    x = 7,109.37

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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.