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Finding the Fourth Proportional to 64,331.10, 88,776.90 and 35,259.30

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Solution

The fourth proportional to 64,331.10, 88,776.90 and 35,259.30 is: 48,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,331.10 : 88,776.90 = 35,259.30 : x
  2. Step 2: Convert to fraction form
    64,331.10/88,776.90 = 35,259.30/x
  3. Step 3: Cross multiply
    64,331.10x = 88,776.90 × 35,259.30
  4. Step 4: Simplify right side
    64,331.10x = 3,130,211,350.17
  5. Step 5: Solve for x
    x = 3,130,211,350.17/64,331.10
  6. Step 6: Final answer
    x = 48,657.82

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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.