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Finding the Fourth Proportional to 8,070.99, 11,128.34 and 6,950.00

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Solution

The fourth proportional to 8,070.99, 11,128.34 and 6,950.00 is: 9,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.99 : 11,128.34 = 6,950.00 : x
  2. Step 2: Convert to fraction form
    8,070.99/11,128.34 = 6,950.00/x
  3. Step 3: Cross multiply
    8,070.99x = 11,128.34 × 6,950.00
  4. Step 4: Simplify right side
    8,070.99x = 77,341,969.10
  5. Step 5: Solve for x
    x = 77,341,969.10/8,070.99
  6. Step 6: Final answer
    x = 9,582.71

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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.