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Finding the Fourth Proportional to 71,038.90, 106,530.51 and 26,641.45

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Solution

The fourth proportional to 71,038.90, 106,530.51 and 26,641.45 is: 39,951.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,038.90 : 106,530.51 = 26,641.45 : x
  2. Step 2: Convert to fraction form
    71,038.90/106,530.51 = 26,641.45/x
  3. Step 3: Cross multiply
    71,038.90x = 106,530.51 × 26,641.45
  4. Step 4: Simplify right side
    71,038.90x = 2,838,127,255.64
  5. Step 5: Solve for x
    x = 2,838,127,255.64/71,038.90
  6. Step 6: Final answer
    x = 39,951.73

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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.