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Finding the Fourth Proportional to 59,445.80, 89,147.10 and 20,004.20

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Solution

The fourth proportional to 59,445.80, 89,147.10 and 20,004.20 is: 29,999.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,445.80 : 89,147.10 = 20,004.20 : x
  2. Step 2: Convert to fraction form
    59,445.80/89,147.10 = 20,004.20/x
  3. Step 3: Cross multiply
    59,445.80x = 89,147.10 × 20,004.20
  4. Step 4: Simplify right side
    59,445.80x = 1,783,316,417.82
  5. Step 5: Solve for x
    x = 1,783,316,417.82/59,445.80
  6. Step 6: Final answer
    x = 29,999.03

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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.