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Finding the Fourth Proportional to 8,483.10, 11,710.70 and 5,655.20

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Solution

The fourth proportional to 8,483.10, 11,710.70 and 5,655.20 is: 7,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.10 : 11,710.70 = 5,655.20 : x
  2. Step 2: Convert to fraction form
    8,483.10/11,710.70 = 5,655.20/x
  3. Step 3: Cross multiply
    8,483.10x = 11,710.70 × 5,655.20
  4. Step 4: Simplify right side
    8,483.10x = 66,226,263.81
  5. Step 5: Solve for x
    x = 66,226,263.81/8,483.10
  6. Step 6: Final answer
    x = 7,806.85

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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.