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Finding the Fourth Proportional to 19,205.68, 26,503.68 and 10,707.72

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Solution

The fourth proportional to 19,205.68, 26,503.68 and 10,707.72 is: 14,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,205.68 : 26,503.68 = 10,707.72 : x
  2. Step 2: Convert to fraction form
    19,205.68/26,503.68 = 10,707.72/x
  3. Step 3: Cross multiply
    19,205.68x = 26,503.68 × 10,707.72
  4. Step 4: Simplify right side
    19,205.68x = 283,793,984.41
  5. Step 5: Solve for x
    x = 283,793,984.41/19,205.68
  6. Step 6: Final answer
    x = 14,776.57

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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.