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Finding the Fourth Proportional to 7,887.93, 10,851.80 and 7,669.23

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Solution

The fourth proportional to 7,887.93, 10,851.80 and 7,669.23 is: 10,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.93 : 10,851.80 = 7,669.23 : x
  2. Step 2: Convert to fraction form
    7,887.93/10,851.80 = 7,669.23/x
  3. Step 3: Cross multiply
    7,887.93x = 10,851.80 × 7,669.23
  4. Step 4: Simplify right side
    7,887.93x = 83,224,950.11
  5. Step 5: Solve for x
    x = 83,224,950.11/7,887.93
  6. Step 6: Final answer
    x = 10,550.92

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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.