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Finding the Fourth Proportional to 11,220, 15,483.52 and 6,184.22

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Solution

The fourth proportional to 11,220, 15,483.52 and 6,184.22 is: 8,534.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220 : 15,483.52 = 6,184.22 : x
  2. Step 2: Convert to fraction form
    11,220/15,483.52 = 6,184.22/x
  3. Step 3: Cross multiply
    11,220x = 15,483.52 × 6,184.22
  4. Step 4: Simplify right side
    11,220x = 95,753,463.13
  5. Step 5: Solve for x
    x = 95,753,463.13/11,220
  6. Step 6: Final answer
    x = 8,534.18

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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.