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Finding the Fourth Proportional to 19,276.59, 28,901.91 and 9,904.89

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Solution

The fourth proportional to 19,276.59, 28,901.91 and 9,904.89 is: 14,850.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.59 : 28,901.91 = 9,904.89 : x
  2. Step 2: Convert to fraction form
    19,276.59/28,901.91 = 9,904.89/x
  3. Step 3: Cross multiply
    19,276.59x = 28,901.91 × 9,904.89
  4. Step 4: Simplify right side
    19,276.59x = 286,270,239.34
  5. Step 5: Solve for x
    x = 286,270,239.34/19,276.59
  6. Step 6: Final answer
    x = 14,850.67

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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.