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Finding the Fourth Proportional to 85,030.04, 127,550.02 and 25,867.80

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Solution

The fourth proportional to 85,030.04, 127,550.02 and 25,867.80 is: 38,803.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,030.04 : 127,550.02 = 25,867.80 : x
  2. Step 2: Convert to fraction form
    85,030.04/127,550.02 = 25,867.80/x
  3. Step 3: Cross multiply
    85,030.04x = 127,550.02 × 25,867.80
  4. Step 4: Simplify right side
    85,030.04x = 3,299,438,407.36
  5. Step 5: Solve for x
    x = 3,299,438,407.36/85,030.04
  6. Step 6: Final answer
    x = 38,803.21

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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.