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Finding the Fourth Proportional to 5,659.32, 8,430.63 and 5,487.36

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Solution

The fourth proportional to 5,659.32, 8,430.63 and 5,487.36 is: 8,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,659.32 : 8,430.63 = 5,487.36 : x
  2. Step 2: Convert to fraction form
    5,659.32/8,430.63 = 5,487.36/x
  3. Step 3: Cross multiply
    5,659.32x = 8,430.63 × 5,487.36
  4. Step 4: Simplify right side
    5,659.32x = 46,261,901.84
  5. Step 5: Solve for x
    x = 46,261,901.84/5,659.32
  6. Step 6: Final answer
    x = 8,174.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.