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Finding the Fourth Proportional to 10,479.61, 14,464.07 and 6,648.76

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Solution

The fourth proportional to 10,479.61, 14,464.07 and 6,648.76 is: 9,176.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.61 : 14,464.07 = 6,648.76 : x
  2. Step 2: Convert to fraction form
    10,479.61/14,464.07 = 6,648.76/x
  3. Step 3: Cross multiply
    10,479.61x = 14,464.07 × 6,648.76
  4. Step 4: Simplify right side
    10,479.61x = 96,168,130.05
  5. Step 5: Solve for x
    x = 96,168,130.05/10,479.61
  6. Step 6: Final answer
    x = 9,176.69

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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.