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Finding the Fourth Proportional to 59,977.60, 89,966.40 and 38,982.40

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Solution

The fourth proportional to 59,977.60, 89,966.40 and 38,982.40 is: 58,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,977.60 : 89,966.40 = 38,982.40 : x
  2. Step 2: Convert to fraction form
    59,977.60/89,966.40 = 38,982.40/x
  3. Step 3: Cross multiply
    59,977.60x = 89,966.40 × 38,982.40
  4. Step 4: Simplify right side
    59,977.60x = 3,507,106,191.36
  5. Step 5: Solve for x
    x = 3,507,106,191.36/59,977.60
  6. Step 6: Final answer
    x = 58,473.60

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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.