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Finding the Fourth Proportional to 30,275.01, 41,785.29 and 20,048.01

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Solution

The fourth proportional to 30,275.01, 41,785.29 and 20,048.01 is: 27,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.01 : 41,785.29 = 20,048.01 : x
  2. Step 2: Convert to fraction form
    30,275.01/41,785.29 = 20,048.01/x
  3. Step 3: Cross multiply
    30,275.01x = 41,785.29 × 20,048.01
  4. Step 4: Simplify right side
    30,275.01x = 837,711,602.61
  5. Step 5: Solve for x
    x = 837,711,602.61/30,275.01
  6. Step 6: Final answer
    x = 27,670.07

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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.