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Finding the Fourth Proportional to 57,762.32, 79,690.56 and 33,880.28

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Solution

The fourth proportional to 57,762.32, 79,690.56 and 33,880.28 is: 46,742.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,762.32 : 79,690.56 = 33,880.28 : x
  2. Step 2: Convert to fraction form
    57,762.32/79,690.56 = 33,880.28/x
  3. Step 3: Cross multiply
    57,762.32x = 79,690.56 × 33,880.28
  4. Step 4: Simplify right side
    57,762.32x = 2,699,938,486.16
  5. Step 5: Solve for x
    x = 2,699,938,486.16/57,762.32
  6. Step 6: Final answer
    x = 46,742.21

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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.