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Finding the Fourth Proportional to 59,741.68, 89,420.96 and 39,705.20

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Solution

The fourth proportional to 59,741.68, 89,420.96 and 39,705.20 is: 59,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,741.68 : 89,420.96 = 39,705.20 : x
  2. Step 2: Convert to fraction form
    59,741.68/89,420.96 = 39,705.20/x
  3. Step 3: Cross multiply
    59,741.68x = 89,420.96 × 39,705.20
  4. Step 4: Simplify right side
    59,741.68x = 3,550,477,100.99
  5. Step 5: Solve for x
    x = 3,550,477,100.99/59,741.68
  6. Step 6: Final answer
    x = 59,430.49

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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.