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Finding the Fourth Proportional to 40,503.80, 55,921.26 and 25,417.16

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Solution

The fourth proportional to 40,503.80, 55,921.26 and 25,417.16 is: 35,092.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,503.80 : 55,921.26 = 25,417.16 : x
  2. Step 2: Convert to fraction form
    40,503.80/55,921.26 = 25,417.16/x
  3. Step 3: Cross multiply
    40,503.80x = 55,921.26 × 25,417.16
  4. Step 4: Simplify right side
    40,503.80x = 1,421,359,612.82
  5. Step 5: Solve for x
    x = 1,421,359,612.82/40,503.80
  6. Step 6: Final answer
    x = 35,092.01

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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.