Home / 47,931.91-66,143.28-27,509.65

Finding the Fourth Proportional to 47,931.91, 66,143.28 and 27,509.65

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Solution

The fourth proportional to 47,931.91, 66,143.28 and 27,509.65 is: 37,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,931.91 : 66,143.28 = 27,509.65 : x
  2. Step 2: Convert to fraction form
    47,931.91/66,143.28 = 27,509.65/x
  3. Step 3: Cross multiply
    47,931.91x = 66,143.28 × 27,509.65
  4. Step 4: Simplify right side
    47,931.91x = 1,819,578,482.65
  5. Step 5: Solve for x
    x = 1,819,578,482.65/47,931.91
  6. Step 6: Final answer
    x = 37,961.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.