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Finding the Fourth Proportional to 15,980.63, 23,972.06 and 4,886.47

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Solution

The fourth proportional to 15,980.63, 23,972.06 and 4,886.47 is: 7,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,980.63 : 23,972.06 = 4,886.47 : x
  2. Step 2: Convert to fraction form
    15,980.63/23,972.06 = 4,886.47/x
  3. Step 3: Cross multiply
    15,980.63x = 23,972.06 × 4,886.47
  4. Step 4: Simplify right side
    15,980.63x = 117,138,607.74
  5. Step 5: Solve for x
    x = 117,138,607.74/15,980.63
  6. Step 6: Final answer
    x = 7,330.04

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1.5x scale

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.