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Finding the Fourth Proportional to 53,866.80, 80,929.80 and 48,164.40

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Solution

The fourth proportional to 53,866.80, 80,929.80 and 48,164.40 is: 72,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,866.80 : 80,929.80 = 48,164.40 : x
  2. Step 2: Convert to fraction form
    53,866.80/80,929.80 = 48,164.40/x
  3. Step 3: Cross multiply
    53,866.80x = 80,929.80 × 48,164.40
  4. Step 4: Simplify right side
    53,866.80x = 3,897,935,259.12
  5. Step 5: Solve for x
    x = 3,897,935,259.12/53,866.80
  6. Step 6: Final answer
    x = 72,362.48

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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.