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Finding the Fourth Proportional to 29,307.56, 43,959.51 and 12,655.91

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Solution

The fourth proportional to 29,307.56, 43,959.51 and 12,655.91 is: 18,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,307.56 : 43,959.51 = 12,655.91 : x
  2. Step 2: Convert to fraction form
    29,307.56/43,959.51 = 12,655.91/x
  3. Step 3: Cross multiply
    29,307.56x = 43,959.51 × 12,655.91
  4. Step 4: Simplify right side
    29,307.56x = 556,347,712.10
  5. Step 5: Solve for x
    x = 556,347,712.10/29,307.56
  6. Step 6: Final answer
    x = 18,983.08

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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.