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Finding the Fourth Proportional to 15,507.79, 23,253.89 and 7,610.90

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Solution

The fourth proportional to 15,507.79, 23,253.89 and 7,610.90 is: 11,412.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507.79 : 23,253.89 = 7,610.90 : x
  2. Step 2: Convert to fraction form
    15,507.79/23,253.89 = 7,610.90/x
  3. Step 3: Cross multiply
    15,507.79x = 23,253.89 × 7,610.90
  4. Step 4: Simplify right side
    15,507.79x = 176,982,877.08
  5. Step 5: Solve for x
    x = 176,982,877.08/15,507.79
  6. Step 6: Final answer
    x = 11,412.52

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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.