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Finding the Fourth Proportional to 28,597.59, 39,462.80 and 16,019.91

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Solution

The fourth proportional to 28,597.59, 39,462.80 and 16,019.91 is: 22,106.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597.59 : 39,462.80 = 16,019.91 : x
  2. Step 2: Convert to fraction form
    28,597.59/39,462.80 = 16,019.91/x
  3. Step 3: Cross multiply
    28,597.59x = 39,462.80 × 16,019.91
  4. Step 4: Simplify right side
    28,597.59x = 632,190,424.25
  5. Step 5: Solve for x
    x = 632,190,424.25/28,597.59
  6. Step 6: Final answer
    x = 22,106.42

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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.