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Finding the Fourth Proportional to 70,779.34, 106,165.41 and 26,402.59

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Solution

The fourth proportional to 70,779.34, 106,165.41 and 26,402.59 is: 39,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,779.34 : 106,165.41 = 26,402.59 : x
  2. Step 2: Convert to fraction form
    70,779.34/106,165.41 = 26,402.59/x
  3. Step 3: Cross multiply
    70,779.34x = 106,165.41 × 26,402.59
  4. Step 4: Simplify right side
    70,779.34x = 2,803,041,792.41
  5. Step 5: Solve for x
    x = 2,803,041,792.41/70,779.34
  6. Step 6: Final answer
    x = 39,602.54

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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.