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Finding the Fourth Proportional to 60,572.80, 90,859.20 and 31,048.30

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Solution

The fourth proportional to 60,572.80, 90,859.20 and 31,048.30 is: 46,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,572.80 : 90,859.20 = 31,048.30 : x
  2. Step 2: Convert to fraction form
    60,572.80/90,859.20 = 31,048.30/x
  3. Step 3: Cross multiply
    60,572.80x = 90,859.20 × 31,048.30
  4. Step 4: Simplify right side
    60,572.80x = 2,821,023,699.36
  5. Step 5: Solve for x
    x = 2,821,023,699.36/60,572.80
  6. Step 6: Final answer
    x = 46,572.45

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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.