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Finding the Fourth Proportional to 10,790.11, 14,886.87 and 6,542.87

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Solution

The fourth proportional to 10,790.11, 14,886.87 and 6,542.87 is: 9,027.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.11 : 14,886.87 = 6,542.87 : x
  2. Step 2: Convert to fraction form
    10,790.11/14,886.87 = 6,542.87/x
  3. Step 3: Cross multiply
    10,790.11x = 14,886.87 × 6,542.87
  4. Step 4: Simplify right side
    10,790.11x = 97,402,855.12
  5. Step 5: Solve for x
    x = 97,402,855.12/10,790.11
  6. Step 6: Final answer
    x = 9,027.05

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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.