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Finding the Fourth Proportional to 48,316.84, 72,500 and 22,018.20

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Solution

The fourth proportional to 48,316.84, 72,500 and 22,018.20 is: 33,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,316.84 : 72,500 = 22,018.20 : x
  2. Step 2: Convert to fraction form
    48,316.84/72,500 = 22,018.20/x
  3. Step 3: Cross multiply
    48,316.84x = 72,500 × 22,018.20
  4. Step 4: Simplify right side
    48,316.84x = 1,596,319,500
  5. Step 5: Solve for x
    x = 1,596,319,500/48,316.84
  6. Step 6: Final answer
    x = 33,038.57

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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.