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Finding the Fourth Proportional to 71,477.68, 107,216.80 and 29,895.52

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Solution

The fourth proportional to 71,477.68, 107,216.80 and 29,895.52 is: 44,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,477.68 : 107,216.80 = 29,895.52 : x
  2. Step 2: Convert to fraction form
    71,477.68/107,216.80 = 29,895.52/x
  3. Step 3: Cross multiply
    71,477.68x = 107,216.80 × 29,895.52
  4. Step 4: Simplify right side
    71,477.68x = 3,205,301,988.74
  5. Step 5: Solve for x
    x = 3,205,301,988.74/71,477.68
  6. Step 6: Final answer
    x = 44,843.40

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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.