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Finding the Fourth Proportional to 51,407.30, 70,941.93 and 29,051.30

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Solution

The fourth proportional to 51,407.30, 70,941.93 and 29,051.30 is: 40,090.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,407.30 : 70,941.93 = 29,051.30 : x
  2. Step 2: Convert to fraction form
    51,407.30/70,941.93 = 29,051.30/x
  3. Step 3: Cross multiply
    51,407.30x = 70,941.93 × 29,051.30
  4. Step 4: Simplify right side
    51,407.30x = 2,060,955,291.01
  5. Step 5: Solve for x
    x = 2,060,955,291.01/51,407.30
  6. Step 6: Final answer
    x = 40,090.71

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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.