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Finding the Fourth Proportional to 59,905.80, 89,858.70 and 18,347.40

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Solution

The fourth proportional to 59,905.80, 89,858.70 and 18,347.40 is: 27,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,905.80 : 89,858.70 = 18,347.40 : x
  2. Step 2: Convert to fraction form
    59,905.80/89,858.70 = 18,347.40/x
  3. Step 3: Cross multiply
    59,905.80x = 89,858.70 × 18,347.40
  4. Step 4: Simplify right side
    59,905.80x = 1,648,673,512.38
  5. Step 5: Solve for x
    x = 1,648,673,512.38/59,905.80
  6. Step 6: Final answer
    x = 27,521.10

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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.