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Finding the Fourth Proportional to 28,032.30, 42,060.60 and 13,233.60

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Solution

The fourth proportional to 28,032.30, 42,060.60 and 13,233.60 is: 19,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.30 : 42,060.60 = 13,233.60 : x
  2. Step 2: Convert to fraction form
    28,032.30/42,060.60 = 13,233.60/x
  3. Step 3: Cross multiply
    28,032.30x = 42,060.60 × 13,233.60
  4. Step 4: Simplify right side
    28,032.30x = 556,613,156.16
  5. Step 5: Solve for x
    x = 556,613,156.16/28,032.30
  6. Step 6: Final answer
    x = 19,856.14

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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.