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Finding the Fourth Proportional to 65,810.75, 90,818.55 and 35,596.13

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Solution

The fourth proportional to 65,810.75, 90,818.55 and 35,596.13 is: 49,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,810.75 : 90,818.55 = 35,596.13 : x
  2. Step 2: Convert to fraction form
    65,810.75/90,818.55 = 35,596.13/x
  3. Step 3: Cross multiply
    65,810.75x = 90,818.55 × 35,596.13
  4. Step 4: Simplify right side
    65,810.75x = 3,232,788,458.12
  5. Step 5: Solve for x
    x = 3,232,788,458.12/65,810.75
  6. Step 6: Final answer
    x = 49,122.50

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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.