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Finding the Fourth Proportional to 28,502.52, 42,756.52 and 7,442.93

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Solution

The fourth proportional to 28,502.52, 42,756.52 and 7,442.93 is: 11,165.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.52 : 42,756.52 = 7,442.93 : x
  2. Step 2: Convert to fraction form
    28,502.52/42,756.52 = 7,442.93/x
  3. Step 3: Cross multiply
    28,502.52x = 42,756.52 × 7,442.93
  4. Step 4: Simplify right side
    28,502.52x = 318,233,785.40
  5. Step 5: Solve for x
    x = 318,233,785.40/28,502.52
  6. Step 6: Final answer
    x = 11,165.11

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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.