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Finding the Fourth Proportional to 63,695.68, 87,897.90 and 35,400.76

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Solution

The fourth proportional to 63,695.68, 87,897.90 and 35,400.76 is: 48,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,695.68 : 87,897.90 = 35,400.76 : x
  2. Step 2: Convert to fraction form
    63,695.68/87,897.90 = 35,400.76/x
  3. Step 3: Cross multiply
    63,695.68x = 87,897.90 × 35,400.76
  4. Step 4: Simplify right side
    63,695.68x = 3,111,652,462.40
  5. Step 5: Solve for x
    x = 3,111,652,462.40/63,695.68
  6. Step 6: Final answer
    x = 48,851.86

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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.