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Finding the Fourth Proportional to 9,627.64, 14,436.54 and 4,429

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Solution

The fourth proportional to 9,627.64, 14,436.54 and 4,429 is: 6,641.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,627.64 : 14,436.54 = 4,429 : x
  2. Step 2: Convert to fraction form
    9,627.64/14,436.54 = 4,429/x
  3. Step 3: Cross multiply
    9,627.64x = 14,436.54 × 4,429
  4. Step 4: Simplify right side
    9,627.64x = 63,939,435.66
  5. Step 5: Solve for x
    x = 63,939,435.66/9,627.64
  6. Step 6: Final answer
    x = 6,641.24

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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.