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Finding the Fourth Proportional to 6,875.80, 9,632.60 and 6,875.80

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Solution

The fourth proportional to 6,875.80, 9,632.60 and 6,875.80 is: 9,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.80 : 9,632.60 = 6,875.80 : x
  2. Step 2: Convert to fraction form
    6,875.80/9,632.60 = 6,875.80/x
  3. Step 3: Cross multiply
    6,875.80x = 9,632.60 × 6,875.80
  4. Step 4: Simplify right side
    6,875.80x = 66,231,831.08
  5. Step 5: Solve for x
    x = 66,231,831.08/6,875.80
  6. Step 6: Final answer
    x = 9,632.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.