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Finding the Fourth Proportional to 53,751.96, 74,008.30 and 48,769.70

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Solution

The fourth proportional to 53,751.96, 74,008.30 and 48,769.70 is: 67,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,751.96 : 74,008.30 = 48,769.70 : x
  2. Step 2: Convert to fraction form
    53,751.96/74,008.30 = 48,769.70/x
  3. Step 3: Cross multiply
    53,751.96x = 74,008.30 × 48,769.70
  4. Step 4: Simplify right side
    53,751.96x = 3,609,362,588.51
  5. Step 5: Solve for x
    x = 3,609,362,588.51/53,751.96
  6. Step 6: Final answer
    x = 67,148.48

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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.