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Finding the Fourth Proportional to 39,756.70, 59,635.05 and 31,008.70

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Solution

The fourth proportional to 39,756.70, 59,635.05 and 31,008.70 is: 46,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.70 : 59,635.05 = 31,008.70 : x
  2. Step 2: Convert to fraction form
    39,756.70/59,635.05 = 31,008.70/x
  3. Step 3: Cross multiply
    39,756.70x = 59,635.05 × 31,008.70
  4. Step 4: Simplify right side
    39,756.70x = 1,849,205,374.94
  5. Step 5: Solve for x
    x = 1,849,205,374.94/39,756.70
  6. Step 6: Final answer
    x = 46,513.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.