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Finding the Fourth Proportional to 19,001.20, 28,530.60 and 14,623.60

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Solution

The fourth proportional to 19,001.20, 28,530.60 and 14,623.60 is: 21,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.20 : 28,530.60 = 14,623.60 : x
  2. Step 2: Convert to fraction form
    19,001.20/28,530.60 = 14,623.60/x
  3. Step 3: Cross multiply
    19,001.20x = 28,530.60 × 14,623.60
  4. Step 4: Simplify right side
    19,001.20x = 417,220,082.16
  5. Step 5: Solve for x
    x = 417,220,082.16/19,001.20
  6. Step 6: Final answer
    x = 21,957.56

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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.