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Finding the Fourth Proportional to 64,427.86, 88,889.75 and 38,941.76

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Solution

The fourth proportional to 64,427.86, 88,889.75 and 38,941.76 is: 53,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,427.86 : 88,889.75 = 38,941.76 : x
  2. Step 2: Convert to fraction form
    64,427.86/88,889.75 = 38,941.76/x
  3. Step 3: Cross multiply
    64,427.86x = 88,889.75 × 38,941.76
  4. Step 4: Simplify right side
    64,427.86x = 3,461,523,703.55
  5. Step 5: Solve for x
    x = 3,461,523,703.55/64,427.86
  6. Step 6: Final answer
    x = 53,727.13

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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.