Home / 47,085.40-64,950.64-28,211.56

Finding the Fourth Proportional to 47,085.40, 64,950.64 and 28,211.56

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Solution

The fourth proportional to 47,085.40, 64,950.64 and 28,211.56 is: 38,915.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,085.40 : 64,950.64 = 28,211.56 : x
  2. Step 2: Convert to fraction form
    47,085.40/64,950.64 = 28,211.56/x
  3. Step 3: Cross multiply
    47,085.40x = 64,950.64 × 28,211.56
  4. Step 4: Simplify right side
    47,085.40x = 1,832,358,877.40
  5. Step 5: Solve for x
    x = 1,832,358,877.40/47,085.40
  6. Step 6: Final answer
    x = 38,915.65

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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.