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Finding the Fourth Proportional to 85,597.53, 128,326.71 and 35,714.80

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Solution

The fourth proportional to 85,597.53, 128,326.71 and 35,714.80 is: 53,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.53 : 128,326.71 = 35,714.80 : x
  2. Step 2: Convert to fraction form
    85,597.53/128,326.71 = 35,714.80/x
  3. Step 3: Cross multiply
    85,597.53x = 128,326.71 × 35,714.80
  4. Step 4: Simplify right side
    85,597.53x = 4,583,162,140.67
  5. Step 5: Solve for x
    x = 4,583,162,140.67/85,597.53
  6. Step 6: Final answer
    x = 53,543.16

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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.