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Finding the Fourth Proportional to 79,886.56, 110,206.30 and 47,603.07

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Solution

The fourth proportional to 79,886.56, 110,206.30 and 47,603.07 is: 65,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,886.56 : 110,206.30 = 47,603.07 : x
  2. Step 2: Convert to fraction form
    79,886.56/110,206.30 = 47,603.07/x
  3. Step 3: Cross multiply
    79,886.56x = 110,206.30 × 47,603.07
  4. Step 4: Simplify right side
    79,886.56x = 5,246,158,213.34
  5. Step 5: Solve for x
    x = 5,246,158,213.34/79,886.56
  6. Step 6: Final answer
    x = 65,670.10

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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.