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Finding the Fourth Proportional to 28,695.81, 43,050.66 and 9,973.14

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Solution

The fourth proportional to 28,695.81, 43,050.66 and 9,973.14 is: 14,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695.81 : 43,050.66 = 9,973.14 : x
  2. Step 2: Convert to fraction form
    28,695.81/43,050.66 = 9,973.14/x
  3. Step 3: Cross multiply
    28,695.81x = 43,050.66 × 9,973.14
  4. Step 4: Simplify right side
    28,695.81x = 429,350,259.27
  5. Step 5: Solve for x
    x = 429,350,259.27/28,695.81
  6. Step 6: Final answer
    x = 14,962.12

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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.