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Finding the Fourth Proportional to 47,352.80, 71,029.20 and 29,842.40

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Solution

The fourth proportional to 47,352.80, 71,029.20 and 29,842.40 is: 44,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,352.80 : 71,029.20 = 29,842.40 : x
  2. Step 2: Convert to fraction form
    47,352.80/71,029.20 = 29,842.40/x
  3. Step 3: Cross multiply
    47,352.80x = 71,029.20 × 29,842.40
  4. Step 4: Simplify right side
    47,352.80x = 2,119,681,798.08
  5. Step 5: Solve for x
    x = 2,119,681,798.08/47,352.80
  6. Step 6: Final answer
    x = 44,763.60

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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.