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Finding the Fourth Proportional to 8,357.04, 11,533.20 and 4,820.40

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Solution

The fourth proportional to 8,357.04, 11,533.20 and 4,820.40 is: 6,652.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.04 : 11,533.20 = 4,820.40 : x
  2. Step 2: Convert to fraction form
    8,357.04/11,533.20 = 4,820.40/x
  3. Step 3: Cross multiply
    8,357.04x = 11,533.20 × 4,820.40
  4. Step 4: Simplify right side
    8,357.04x = 55,594,637.28
  5. Step 5: Solve for x
    x = 55,594,637.28/8,357.04
  6. Step 6: Final answer
    x = 6,652.43

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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.