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Finding the Fourth Proportional to 84,970.60, 127,490.70 and 37,560.60

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Solution

The fourth proportional to 84,970.60, 127,490.70 and 37,560.60 is: 56,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,970.60 : 127,490.70 = 37,560.60 : x
  2. Step 2: Convert to fraction form
    84,970.60/127,490.70 = 37,560.60/x
  3. Step 3: Cross multiply
    84,970.60x = 127,490.70 × 37,560.60
  4. Step 4: Simplify right side
    84,970.60x = 4,788,627,186.42
  5. Step 5: Solve for x
    x = 4,788,627,186.42/84,970.60
  6. Step 6: Final answer
    x = 56,356.28

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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.