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Finding the Fourth Proportional to 48,191.59, 66,534.59 and 30,970.93

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Solution

The fourth proportional to 48,191.59, 66,534.59 and 30,970.93 is: 42,759.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,191.59 : 66,534.59 = 30,970.93 : x
  2. Step 2: Convert to fraction form
    48,191.59/66,534.59 = 30,970.93/x
  3. Step 3: Cross multiply
    48,191.59x = 66,534.59 × 30,970.93
  4. Step 4: Simplify right side
    48,191.59x = 2,060,638,129.47
  5. Step 5: Solve for x
    x = 2,060,638,129.47/48,191.59
  6. Step 6: Final answer
    x = 42,759.29

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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.