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Finding the Fourth Proportional to 4,671.92, 6,447.12 and 2,547.48

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Solution

The fourth proportional to 4,671.92, 6,447.12 and 2,547.48 is: 3,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.92 : 6,447.12 = 2,547.48 : x
  2. Step 2: Convert to fraction form
    4,671.92/6,447.12 = 2,547.48/x
  3. Step 3: Cross multiply
    4,671.92x = 6,447.12 × 2,547.48
  4. Step 4: Simplify right side
    4,671.92x = 16,423,909.26
  5. Step 5: Solve for x
    x = 16,423,909.26/4,671.92
  6. Step 6: Final answer
    x = 3,515.46

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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.