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Finding the Fourth Proportional to 84,970.34, 117,283.72 and 52,714.79

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Solution

The fourth proportional to 84,970.34, 117,283.72 and 52,714.79 is: 72,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,970.34 : 117,283.72 = 52,714.79 : x
  2. Step 2: Convert to fraction form
    84,970.34/117,283.72 = 52,714.79/x
  3. Step 3: Cross multiply
    84,970.34x = 117,283.72 × 52,714.79
  4. Step 4: Simplify right side
    84,970.34x = 6,182,586,538.43
  5. Step 5: Solve for x
    x = 6,182,586,538.43/84,970.34
  6. Step 6: Final answer
    x = 72,761.70

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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.