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Finding the Fourth Proportional to 57,064.94, 78,750.02 and 34,399.40

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Solution

The fourth proportional to 57,064.94, 78,750.02 and 34,399.40 is: 47,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,064.94 : 78,750.02 = 34,399.40 : x
  2. Step 2: Convert to fraction form
    57,064.94/78,750.02 = 34,399.40/x
  3. Step 3: Cross multiply
    57,064.94x = 78,750.02 × 34,399.40
  4. Step 4: Simplify right side
    57,064.94x = 2,708,953,437.99
  5. Step 5: Solve for x
    x = 2,708,953,437.99/57,064.94
  6. Step 6: Final answer
    x = 47,471.41

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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.