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Finding the Fourth Proportional to 61,809.60, 92,714.40 and 17,437.80

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Solution

The fourth proportional to 61,809.60, 92,714.40 and 17,437.80 is: 26,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.60 : 92,714.40 = 17,437.80 : x
  2. Step 2: Convert to fraction form
    61,809.60/92,714.40 = 17,437.80/x
  3. Step 3: Cross multiply
    61,809.60x = 92,714.40 × 17,437.80
  4. Step 4: Simplify right side
    61,809.60x = 1,616,735,164.32
  5. Step 5: Solve for x
    x = 1,616,735,164.32/61,809.60
  6. Step 6: Final answer
    x = 26,156.70

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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.