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Finding the Fourth Proportional to 84,711.74, 127,019 and 32,087.66

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Solution

The fourth proportional to 84,711.74, 127,019 and 32,087.66 is: 48,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,711.74 : 127,019 = 32,087.66 : x
  2. Step 2: Convert to fraction form
    84,711.74/127,019 = 32,087.66/x
  3. Step 3: Cross multiply
    84,711.74x = 127,019 × 32,087.66
  4. Step 4: Simplify right side
    84,711.74x = 4,075,742,485.54
  5. Step 5: Solve for x
    x = 4,075,742,485.54/84,711.74
  6. Step 6: Final answer
    x = 48,113.08

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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.