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Finding the Fourth Proportional to 59,970.60, 89,857.80 and 20,506.32

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Solution

The fourth proportional to 59,970.60, 89,857.80 and 20,506.32 is: 30,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,970.60 : 89,857.80 = 20,506.32 : x
  2. Step 2: Convert to fraction form
    59,970.60/89,857.80 = 20,506.32/x
  3. Step 3: Cross multiply
    59,970.60x = 89,857.80 × 20,506.32
  4. Step 4: Simplify right side
    59,970.60x = 1,842,652,801.30
  5. Step 5: Solve for x
    x = 1,842,652,801.30/59,970.60
  6. Step 6: Final answer
    x = 30,725.94

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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.