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Finding the Fourth Proportional to 59,289, 81,808.76 and 36,631.68

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Solution

The fourth proportional to 59,289, 81,808.76 and 36,631.68 is: 50,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,289 : 81,808.76 = 36,631.68 : x
  2. Step 2: Convert to fraction form
    59,289/81,808.76 = 36,631.68/x
  3. Step 3: Cross multiply
    59,289x = 81,808.76 × 36,631.68
  4. Step 4: Simplify right side
    59,289x = 2,996,792,317.52
  5. Step 5: Solve for x
    x = 2,996,792,317.52/59,289
  6. Step 6: Final answer
    x = 50,545.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.