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Finding the Fourth Proportional to 53,570.79, 80,349.71 and 14,130.88

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Solution

The fourth proportional to 53,570.79, 80,349.71 and 14,130.88 is: 21,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,570.79 : 80,349.71 = 14,130.88 : x
  2. Step 2: Convert to fraction form
    53,570.79/80,349.71 = 14,130.88/x
  3. Step 3: Cross multiply
    53,570.79x = 80,349.71 × 14,130.88
  4. Step 4: Simplify right side
    53,570.79x = 1,135,411,838.52
  5. Step 5: Solve for x
    x = 1,135,411,838.52/53,570.79
  6. Step 6: Final answer
    x = 21,194.61

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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.