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Finding the Fourth Proportional to 66,059.84, 99,089.34 and 16,140.20

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Solution

The fourth proportional to 66,059.84, 99,089.34 and 16,140.20 is: 24,210.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,059.84 : 99,089.34 = 16,140.20 : x
  2. Step 2: Convert to fraction form
    66,059.84/99,089.34 = 16,140.20/x
  3. Step 3: Cross multiply
    66,059.84x = 99,089.34 × 16,140.20
  4. Step 4: Simplify right side
    66,059.84x = 1,599,321,270.02
  5. Step 5: Solve for x
    x = 1,599,321,270.02/66,059.84
  6. Step 6: Final answer
    x = 24,210.19

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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.