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Finding the Fourth Proportional to 52,457.80, 72,385.48 and 29,788.60

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Solution

The fourth proportional to 52,457.80, 72,385.48 and 29,788.60 is: 41,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,457.80 : 72,385.48 = 29,788.60 : x
  2. Step 2: Convert to fraction form
    52,457.80/72,385.48 = 29,788.60/x
  3. Step 3: Cross multiply
    52,457.80x = 72,385.48 × 29,788.60
  4. Step 4: Simplify right side
    52,457.80x = 2,156,262,109.53
  5. Step 5: Solve for x
    x = 2,156,262,109.53/52,457.80
  6. Step 6: Final answer
    x = 41,104.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.