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Finding the Fourth Proportional to 8,547.60, 12,820.11 and 2,703.45

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Solution

The fourth proportional to 8,547.60, 12,820.11 and 2,703.45 is: 4,054.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547.60 : 12,820.11 = 2,703.45 : x
  2. Step 2: Convert to fraction form
    8,547.60/12,820.11 = 2,703.45/x
  3. Step 3: Cross multiply
    8,547.60x = 12,820.11 × 2,703.45
  4. Step 4: Simplify right side
    8,547.60x = 34,658,467.55
  5. Step 5: Solve for x
    x = 34,658,467.55/8,547.60
  6. Step 6: Final answer
    x = 4,054.76

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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.