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Finding the Fourth Proportional to 8,810.00, 12,157.74 and 4,831.13

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Solution

The fourth proportional to 8,810.00, 12,157.74 and 4,831.13 is: 6,666.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.00 : 12,157.74 = 4,831.13 : x
  2. Step 2: Convert to fraction form
    8,810.00/12,157.74 = 4,831.13/x
  3. Step 3: Cross multiply
    8,810.00x = 12,157.74 × 4,831.13
  4. Step 4: Simplify right side
    8,810.00x = 58,735,561.66
  5. Step 5: Solve for x
    x = 58,735,561.66/8,810.00
  6. Step 6: Final answer
    x = 6,666.92

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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.