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Finding the Fourth Proportional to 43,205.16, 64,798.01 and 15,503.16

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Solution

The fourth proportional to 43,205.16, 64,798.01 and 15,503.16 is: 23,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,205.16 : 64,798.01 = 15,503.16 : x
  2. Step 2: Convert to fraction form
    43,205.16/64,798.01 = 15,503.16/x
  3. Step 3: Cross multiply
    43,205.16x = 64,798.01 × 15,503.16
  4. Step 4: Simplify right side
    43,205.16x = 1,004,573,916.71
  5. Step 5: Solve for x
    x = 1,004,573,916.71/43,205.16
  6. Step 6: Final answer
    x = 23,251.25

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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.