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Finding the Fourth Proportional to 59,473.78, 89,210.64 and 17,920.78

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Solution

The fourth proportional to 59,473.78, 89,210.64 and 17,920.78 is: 26,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,473.78 : 89,210.64 = 17,920.78 : x
  2. Step 2: Convert to fraction form
    59,473.78/89,210.64 = 17,920.78/x
  3. Step 3: Cross multiply
    59,473.78x = 89,210.64 × 17,920.78
  4. Step 4: Simplify right side
    59,473.78x = 1,598,724,253.10
  5. Step 5: Solve for x
    x = 1,598,724,253.10/59,473.78
  6. Step 6: Final answer
    x = 26,881.16

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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.