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Finding the Fourth Proportional to 28,966.72, 43,459.80 and 9,248.08

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Solution

The fourth proportional to 28,966.72, 43,459.80 and 9,248.08 is: 13,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.72 : 43,459.80 = 9,248.08 : x
  2. Step 2: Convert to fraction form
    28,966.72/43,459.80 = 9,248.08/x
  3. Step 3: Cross multiply
    28,966.72x = 43,459.80 × 9,248.08
  4. Step 4: Simplify right side
    28,966.72x = 401,919,707.18
  5. Step 5: Solve for x
    x = 401,919,707.18/28,966.72
  6. Step 6: Final answer
    x = 13,875.22

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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.