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Finding the Fourth Proportional to 64,420.85, 88,901.72 and 48,259.53

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Solution

The fourth proportional to 64,420.85, 88,901.72 and 48,259.53 is: 66,598.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,420.85 : 88,901.72 = 48,259.53 : x
  2. Step 2: Convert to fraction form
    64,420.85/88,901.72 = 48,259.53/x
  3. Step 3: Cross multiply
    64,420.85x = 88,901.72 × 48,259.53
  4. Step 4: Simplify right side
    64,420.85x = 4,290,355,163.07
  5. Step 5: Solve for x
    x = 4,290,355,163.07/64,420.85
  6. Step 6: Final answer
    x = 66,598.86

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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.