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Finding the Fourth Proportional to 48,442.59, 72,665.51 and 12,903.57

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Solution

The fourth proportional to 48,442.59, 72,665.51 and 12,903.57 is: 19,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,442.59 : 72,665.51 = 12,903.57 : x
  2. Step 2: Convert to fraction form
    48,442.59/72,665.51 = 12,903.57/x
  3. Step 3: Cross multiply
    48,442.59x = 72,665.51 × 12,903.57
  4. Step 4: Simplify right side
    48,442.59x = 937,644,430.35
  5. Step 5: Solve for x
    x = 937,644,430.35/48,442.59
  6. Step 6: Final answer
    x = 19,355.79

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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.