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Finding the Fourth Proportional to 53,259.52, 73,488 and 36,486.40

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Solution

The fourth proportional to 53,259.52, 73,488 and 36,486.40 is: 50,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,259.52 : 73,488 = 36,486.40 : x
  2. Step 2: Convert to fraction form
    53,259.52/73,488 = 36,486.40/x
  3. Step 3: Cross multiply
    53,259.52x = 73,488 × 36,486.40
  4. Step 4: Simplify right side
    53,259.52x = 2,681,312,563.20
  5. Step 5: Solve for x
    x = 2,681,312,563.20/53,259.52
  6. Step 6: Final answer
    x = 50,344.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.