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Finding the Fourth Proportional to 28,953.61, 39,952.61 and 16,207.50

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Solution

The fourth proportional to 28,953.61, 39,952.61 and 16,207.50 is: 22,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,953.61 : 39,952.61 = 16,207.50 : x
  2. Step 2: Convert to fraction form
    28,953.61/39,952.61 = 16,207.50/x
  3. Step 3: Cross multiply
    28,953.61x = 39,952.61 × 16,207.50
  4. Step 4: Simplify right side
    28,953.61x = 647,531,926.58
  5. Step 5: Solve for x
    x = 647,531,926.58/28,953.61
  6. Step 6: Final answer
    x = 22,364.46

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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.