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Finding the Fourth Proportional to 3,710.16, 5,565.06 and 1,113

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Solution

The fourth proportional to 3,710.16, 5,565.06 and 1,113 is: 1,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.16 : 5,565.06 = 1,113 : x
  2. Step 2: Convert to fraction form
    3,710.16/5,565.06 = 1,113/x
  3. Step 3: Cross multiply
    3,710.16x = 5,565.06 × 1,113
  4. Step 4: Simplify right side
    3,710.16x = 6,193,911.78
  5. Step 5: Solve for x
    x = 6,193,911.78/3,710.16
  6. Step 6: Final answer
    x = 1,669.45

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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.