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Finding the Fourth Proportional to 9,865.98, 14,802.21 and 4,671.18

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Solution

The fourth proportional to 9,865.98, 14,802.21 and 4,671.18 is: 7,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.98 : 14,802.21 = 4,671.18 : x
  2. Step 2: Convert to fraction form
    9,865.98/14,802.21 = 4,671.18/x
  3. Step 3: Cross multiply
    9,865.98x = 14,802.21 × 4,671.18
  4. Step 4: Simplify right side
    9,865.98x = 69,143,787.31
  5. Step 5: Solve for x
    x = 69,143,787.31/9,865.98
  6. Step 6: Final answer
    x = 7,008.30

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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.