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Finding the Fourth Proportional to 100,897.40, 151,354.80 and 26,016.88

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Solution

The fourth proportional to 100,897.40, 151,354.80 and 26,016.88 is: 39,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,897.40 : 151,354.80 = 26,016.88 : x
  2. Step 2: Convert to fraction form
    100,897.40/151,354.80 = 26,016.88/x
  3. Step 3: Cross multiply
    100,897.40x = 151,354.80 × 26,016.88
  4. Step 4: Simplify right side
    100,897.40x = 3,937,779,669.02
  5. Step 5: Solve for x
    x = 3,937,779,669.02/100,897.40
  6. Step 6: Final answer
    x = 39,027.56

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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.