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Finding the Fourth Proportional to 53,359.94, 80,039.88 and 13,916.94

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Solution

The fourth proportional to 53,359.94, 80,039.88 and 13,916.94 is: 20,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,359.94 : 80,039.88 = 13,916.94 : x
  2. Step 2: Convert to fraction form
    53,359.94/80,039.88 = 13,916.94/x
  3. Step 3: Cross multiply
    53,359.94x = 80,039.88 × 13,916.94
  4. Step 4: Simplify right side
    53,359.94x = 1,113,910,207.57
  5. Step 5: Solve for x
    x = 1,113,910,207.57/53,359.94
  6. Step 6: Final answer
    x = 20,875.40

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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.