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Finding the Fourth Proportional to 61,303.13, 91,955.86 and 16,931.06

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Solution

The fourth proportional to 61,303.13, 91,955.86 and 16,931.06 is: 25,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,303.13 : 91,955.86 = 16,931.06 : x
  2. Step 2: Convert to fraction form
    61,303.13/91,955.86 = 16,931.06/x
  3. Step 3: Cross multiply
    61,303.13x = 91,955.86 × 16,931.06
  4. Step 4: Simplify right side
    61,303.13x = 1,556,910,542.99
  5. Step 5: Solve for x
    x = 1,556,910,542.99/61,303.13
  6. Step 6: Final answer
    x = 25,396.92

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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.