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Finding the Fourth Proportional to 8,810.07, 12,157.68 and 4,831.17

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Solution

The fourth proportional to 8,810.07, 12,157.68 and 4,831.17 is: 6,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.07 : 12,157.68 = 4,831.17 : x
  2. Step 2: Convert to fraction form
    8,810.07/12,157.68 = 4,831.17/x
  3. Step 3: Cross multiply
    8,810.07x = 12,157.68 × 4,831.17
  4. Step 4: Simplify right side
    8,810.07x = 58,735,818.89
  5. Step 5: Solve for x
    x = 58,735,818.89/8,810.07
  6. Step 6: Final answer
    x = 6,666.90

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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.