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Finding the Fourth Proportional to 11,528.01, 15,908.98 and 7,051.68

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Solution

The fourth proportional to 11,528.01, 15,908.98 and 7,051.68 is: 9,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,528.01 : 15,908.98 = 7,051.68 : x
  2. Step 2: Convert to fraction form
    11,528.01/15,908.98 = 7,051.68/x
  3. Step 3: Cross multiply
    11,528.01x = 15,908.98 × 7,051.68
  4. Step 4: Simplify right side
    11,528.01x = 112,185,036.09
  5. Step 5: Solve for x
    x = 112,185,036.09/11,528.01
  6. Step 6: Final answer
    x = 9,731.52

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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.