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Finding the Fourth Proportional to 9,876.04, 14,802.54 and 5,485.72

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Solution

The fourth proportional to 9,876.04, 14,802.54 and 5,485.72 is: 8,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.04 : 14,802.54 = 5,485.72 : x
  2. Step 2: Convert to fraction form
    9,876.04/14,802.54 = 5,485.72/x
  3. Step 3: Cross multiply
    9,876.04x = 14,802.54 × 5,485.72
  4. Step 4: Simplify right side
    9,876.04x = 81,202,589.73
  5. Step 5: Solve for x
    x = 81,202,589.73/9,876.04
  6. Step 6: Final answer
    x = 8,222.18

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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.