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Finding the Fourth Proportional to 71,210.69, 106,783.15 and 26,220.75

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Solution

The fourth proportional to 71,210.69, 106,783.15 and 26,220.75 is: 39,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,210.69 : 106,783.15 = 26,220.75 : x
  2. Step 2: Convert to fraction form
    71,210.69/106,783.15 = 26,220.75/x
  3. Step 3: Cross multiply
    71,210.69x = 106,783.15 × 26,220.75
  4. Step 4: Simplify right side
    71,210.69x = 2,799,934,214.81
  5. Step 5: Solve for x
    x = 2,799,934,214.81/71,210.69
  6. Step 6: Final answer
    x = 39,319.01

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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.