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Finding the Fourth Proportional to 35,491.60, 53,237.40 and 26,621.20

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Solution

The fourth proportional to 35,491.60, 53,237.40 and 26,621.20 is: 39,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,491.60 : 53,237.40 = 26,621.20 : x
  2. Step 2: Convert to fraction form
    35,491.60/53,237.40 = 26,621.20/x
  3. Step 3: Cross multiply
    35,491.60x = 53,237.40 × 26,621.20
  4. Step 4: Simplify right side
    35,491.60x = 1,417,243,472.88
  5. Step 5: Solve for x
    x = 1,417,243,472.88/35,491.60
  6. Step 6: Final answer
    x = 39,931.80

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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.