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Finding the Fourth Proportional to 57,495, 79,343.19 and 31,999.44

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Solution

The fourth proportional to 57,495, 79,343.19 and 31,999.44 is: 44,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,495 : 79,343.19 = 31,999.44 : x
  2. Step 2: Convert to fraction form
    57,495/79,343.19 = 31,999.44/x
  3. Step 3: Cross multiply
    57,495x = 79,343.19 × 31,999.44
  4. Step 4: Simplify right side
    57,495x = 2,538,937,647.81
  5. Step 5: Solve for x
    x = 2,538,937,647.81/57,495
  6. Step 6: Final answer
    x = 44,159.28

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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.