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Finding the Fourth Proportional to 8,703.31, 13,038.52 and 6,745.93

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Solution

The fourth proportional to 8,703.31, 13,038.52 and 6,745.93 is: 10,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.31 : 13,038.52 = 6,745.93 : x
  2. Step 2: Convert to fraction form
    8,703.31/13,038.52 = 6,745.93/x
  3. Step 3: Cross multiply
    8,703.31x = 13,038.52 × 6,745.93
  4. Step 4: Simplify right side
    8,703.31x = 87,956,943.22
  5. Step 5: Solve for x
    x = 87,956,943.22/8,703.31
  6. Step 6: Final answer
    x = 10,106.15

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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.