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Finding the Fourth Proportional to 64,543.35, 89,070.96 and 35,865.66

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Solution

The fourth proportional to 64,543.35, 89,070.96 and 35,865.66 is: 49,495.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,543.35 : 89,070.96 = 35,865.66 : x
  2. Step 2: Convert to fraction form
    64,543.35/89,070.96 = 35,865.66/x
  3. Step 3: Cross multiply
    64,543.35x = 89,070.96 × 35,865.66
  4. Step 4: Simplify right side
    64,543.35x = 3,194,588,767.23
  5. Step 5: Solve for x
    x = 3,194,588,767.23/64,543.35
  6. Step 6: Final answer
    x = 49,495.24

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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.