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Finding the Fourth Proportional to 7,124.31, 9,827.19 and 4,605.48

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Solution

The fourth proportional to 7,124.31, 9,827.19 and 4,605.48 is: 6,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.31 : 9,827.19 = 4,605.48 : x
  2. Step 2: Convert to fraction form
    7,124.31/9,827.19 = 4,605.48/x
  3. Step 3: Cross multiply
    7,124.31x = 9,827.19 × 4,605.48
  4. Step 4: Simplify right side
    7,124.31x = 45,258,927.00
  5. Step 5: Solve for x
    x = 45,258,927.00/7,124.31
  6. Step 6: Final answer
    x = 6,352.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.