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Finding the Fourth Proportional to 5,840.64, 8,760.92 and 1,458.16

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Solution

The fourth proportional to 5,840.64, 8,760.92 and 1,458.16 is: 2,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,840.64 : 8,760.92 = 1,458.16 : x
  2. Step 2: Convert to fraction form
    5,840.64/8,760.92 = 1,458.16/x
  3. Step 3: Cross multiply
    5,840.64x = 8,760.92 × 1,458.16
  4. Step 4: Simplify right side
    5,840.64x = 12,774,823.11
  5. Step 5: Solve for x
    x = 12,774,823.11/5,840.64
  6. Step 6: Final answer
    x = 2,187.23

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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.