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Finding the Fourth Proportional to 22,148.60, 31,085.80 and 22,148.60

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Solution

The fourth proportional to 22,148.60, 31,085.80 and 22,148.60 is: 31,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,148.60 : 31,085.80 = 22,148.60 : x
  2. Step 2: Convert to fraction form
    22,148.60/31,085.80 = 22,148.60/x
  3. Step 3: Cross multiply
    22,148.60x = 31,085.80 × 22,148.60
  4. Step 4: Simplify right side
    22,148.60x = 688,506,949.88
  5. Step 5: Solve for x
    x = 688,506,949.88/22,148.60
  6. Step 6: Final answer
    x = 31,085.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.