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Finding the Fourth Proportional to 15,805.77, 23,700.72 and 5,272.11

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Solution

The fourth proportional to 15,805.77, 23,700.72 and 5,272.11 is: 7,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.77 : 23,700.72 = 5,272.11 : x
  2. Step 2: Convert to fraction form
    15,805.77/23,700.72 = 5,272.11/x
  3. Step 3: Cross multiply
    15,805.77x = 23,700.72 × 5,272.11
  4. Step 4: Simplify right side
    15,805.77x = 124,952,802.92
  5. Step 5: Solve for x
    x = 124,952,802.92/15,805.77
  6. Step 6: Final answer
    x = 7,905.52

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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.