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Finding the Fourth Proportional to 55,998.90, 83,998.35 and 49,875.30

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Solution

The fourth proportional to 55,998.90, 83,998.35 and 49,875.30 is: 74,812.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,998.90 : 83,998.35 = 49,875.30 : x
  2. Step 2: Convert to fraction form
    55,998.90/83,998.35 = 49,875.30/x
  3. Step 3: Cross multiply
    55,998.90x = 83,998.35 × 49,875.30
  4. Step 4: Simplify right side
    55,998.90x = 4,189,442,905.76
  5. Step 5: Solve for x
    x = 4,189,442,905.76/55,998.90
  6. Step 6: Final answer
    x = 74,812.95

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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.