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Finding the Fourth Proportional to 61,809.80, 92,714.70 and 59,390.60

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Solution

The fourth proportional to 61,809.80, 92,714.70 and 59,390.60 is: 89,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.80 : 92,714.70 = 59,390.60 : x
  2. Step 2: Convert to fraction form
    61,809.80/92,714.70 = 59,390.60/x
  3. Step 3: Cross multiply
    61,809.80x = 92,714.70 × 59,390.60
  4. Step 4: Simplify right side
    61,809.80x = 5,506,381,661.82
  5. Step 5: Solve for x
    x = 5,506,381,661.82/61,809.80
  6. Step 6: Final answer
    x = 89,085.90

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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.