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Finding the Fourth Proportional to 8,708.13, 12,017.02 and 4,729.16

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Solution

The fourth proportional to 8,708.13, 12,017.02 and 4,729.16 is: 6,526.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.13 : 12,017.02 = 4,729.16 : x
  2. Step 2: Convert to fraction form
    8,708.13/12,017.02 = 4,729.16/x
  3. Step 3: Cross multiply
    8,708.13x = 12,017.02 × 4,729.16
  4. Step 4: Simplify right side
    8,708.13x = 56,830,338.40
  5. Step 5: Solve for x
    x = 56,830,338.40/8,708.13
  6. Step 6: Final answer
    x = 6,526.12

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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.