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Finding the Fourth Proportional to 28,597.97, 42,886.43 and 9,873.20

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Solution

The fourth proportional to 28,597.97, 42,886.43 and 9,873.20 is: 14,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.97 : 42,886.43 = 9,873.20 : x
  2. Step 2: Convert to fraction form
    28,597.97/42,886.43 = 9,873.20/x
  3. Step 3: Cross multiply
    28,597.97x = 42,886.43 × 9,873.20
  4. Step 4: Simplify right side
    28,597.97x = 423,426,395.55
  5. Step 5: Solve for x
    x = 423,426,395.55/28,597.97
  6. Step 6: Final answer
    x = 14,806.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.