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Finding the Fourth Proportional to 6,026.40, 8,312.63 and 3,784.32

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Solution

The fourth proportional to 6,026.40, 8,312.63 and 3,784.32 is: 5,219.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,026.40 : 8,312.63 = 3,784.32 : x
  2. Step 2: Convert to fraction form
    6,026.40/8,312.63 = 3,784.32/x
  3. Step 3: Cross multiply
    6,026.40x = 8,312.63 × 3,784.32
  4. Step 4: Simplify right side
    6,026.40x = 31,457,633.04
  5. Step 5: Solve for x
    x = 31,457,633.04/6,026.40
  6. Step 6: Final answer
    x = 5,219.97

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Double scale
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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.